PDF Expert for Mac: A Better Preview for PDFs

PDF Expert has been an indispensable app for my iPad for almost as long as I can remember (I’m fairly certain it was one of the first apps I bought when I got my iPad). It’s a fantastic app on iOS because it enables me to not only read, annotate, and add comments to PDFs, but it also gives me a cloud-based ‘Finder’ of sorts – enabling me to browse my Dropbox and OneDrive files and sync them to my iPad.

Given my longstanding appreciation for Readdle’s PDF Expert on iOS, I was pretty keen to try out the Mac version of PDF Expert, which launched late last week. But it must be said, I was sceptical of the value it would bring to the table, because unlike iOS, OS X has the Finder, and cloud services like Dropbox and OneDrive already sync files locally. But most significantly, Preview on the Mac is a fantastic Swiss Army knife for viewing documents and already does a pretty great job at viewing PDF documents, annotating them, adding comments, and even performing some basic page re-organization functions.

But despite my scepticism I was pleased to discover that for those of you who deal with PDFs regularly (myself included), you’ll find value in what Readdle has developed in PDF Expert. Rather than a traditional, wide-ranging, review, I’ve decided to focus on three key features which make PDF Expert worth the money – features that ultimately convinced me to turn my free trial into a purchase.

Preview can merge PDF documents, delete pages, move pages around, extract pages, and so on. But I find that a lot of the time it can be fiddly and feel as though they were features tacked on. That is not the case with PDF Expert for Mac, where it is far simpler to do these tasks.

To accomplish most of these tasks you’ll want to go to PDF Expert’s Page Thumbnail view, which can be triggered by the icon consisting of four squares in the top-left corner of the window. From there you’ll be able to re-arrange pages by dragging them around, add pages, delete pages, rotate pages, and so on. There’s also a button to append pages from another PDF document and the ability to extract selected pages into its own PDF document.

But there’s an even easier way to merge multiple PDF documents in PDF Expert for Mac. Simply go File > Merge Files… and select the PDF documents to merge. PDF Expert will merge them, virtually instantaneously (based on a test I did which came to 58 pages).

One of the frustrations of Preview for me has been the lack of support for tabs. When I’m in the middle of a research project I might often have half a dozen PDF documents open at any one time, which can quickly become a mess to organize because they each have their own window. PDF Expert solves that by opening additional documents in their own tab – just as a web browser would open a new webpage.

But there are also the times when you want to view two PDF documents side-by-side. In that case, simply drag one of the tabs out of the tab bar and that PDF document will “pop out” and exist in its own window. If that seems familiar, it’s because PDF Expert imitates the tab behaviour of Safari. It also means you can drag tabs from one window to another (except when in OS X’s full-screen mode).

This year I’ve had to use some particularly large PDFs – documents that are almost 1000 pages. Preview would load them, but it wasn’t uncommon for Preview to hang for a few moments if I scrolled through them quickly (for reference I’m using a mid-2012 MacBook Air with a 2GHz Intel Core i7 and 8GB of memory). So to test PDF Expert I loaded 7 of the largest PDFs I had on hand, which in total, came to just under 5,000 pages and around 140MB. No matter what I did, whether it was scrolling rapidly, zooming in to a very a large size, quickly switching tabs, I couldn’t detect any lag or hangs. PDF Expert definitely felt a lot more resilient than Preview.

PDF Expert for Mac is currently on sale for $19.99. It will increase in price to $49.99 shortly.

There’s no doubt that most Mac users don’t need anything more than Preview when it comes to viewing PDF documents, but for those of you who deal with PDFs regularly, PDF Expert is well worth the money. Whether it is the ability to put multiple PDF documents into tabs, easily merge multiple PDF documents, or effortlessly handle even the largest PDF documents, PDF Expert offers a handful of features that will quickly become indispensable.

If you’re on the fence about whether or not you’ll find PDF Expert valuable, Readdle also has a 7-day free trial available.

Best free PDF reader (June 2023)

The best free PDF reader apps are perfect for viewing documents, collaborating online, and making changes to your PDF files without any subscription charges or one-off fees. 

Using your browser is the easiest way to read a PDF online, but options are usually limited. To do more with your documents, both online and offline, it’s worth investing time in the best PDF editors, the best free PDF editors, or dedicated PDF reader software. 

PDF readers are the ideal solution for casual users looking for easy-to-use apps and platforms. Better still, the very best free PDF readers come equipped with plenty of tools for power-users. So, look out for features like free PDF to Word converters that put you in control of your documents. 

With plenty of options out there, it can be a challenge identifying which free PDF reader is best for you. To help you find the right tool for your work, we’ve tested out a range of options, exploring everything from performance with large files to cross-platform compatibility and integrated cloud storage.  

Best free PDF reader overall

Operating system: Windows, macOS

Multi-platform support

Handles large PDFs with ease

Tab view for multiple documents

Relatively large

Regular 'upgrade to Pro' ads

Some tools paywalled

Adobe Acrobat Reader DC is a free PDF reader software for Windows and Mac (with Android and iOS PDF reader apps available, too). And it's our top choice for best free PDF reader overall - although we found features one massive downside.

The top PDF viewer is designed with two purposes in mind: the first is to enable you to read and interact with PDF files (including adding annotations and even signing a document). 

The second is to convince you to upgrade to the paid version of the software (which, you’ve guessed it, has many more features, including the ability to create and edit PDF files).

If it wasn’t for the latter, Acrobat Reader would be a decent addition to your software library. It’s simple, easy to use, and comes with all the basic features you need to interact with PDF files. In our review, we reckoned that “Adobe Acrobat Reader DC is one of the best free PDF readers for anyone looking to view documents and manipulate them in some way.”

Sadly, the adware side of things is pretty much everywhere: you get ‘try now’ buttons, you’re offered to use powerful tools but later are asked to pony up some cash in order to actually use them, there’s even a ‘7-day trial’ button. If you can overlook this, it’s a great tool, but there are less obtrusive ones out there.

Read our full Adobe Acrobat Reader DC review

Best free PDF reader for wide platform support

Operating system: Windows, macOS, Linux, Android, iOS, Citrix

Allows you to create PDFs

Safe mode disables Javascript

Lightweight download

Some features require extensions

Foxit PDF Reader is more than just a free PDF reader – you can also create PDFs from scratch using this software. Integration with Microsoft Office allows you to easily turn documents you’re working on into PDFs. Or, you can scan a document or image and turn it into a PDF using Foxit Reader. The only thing that’s lacking in the free version is support for optical character recognition in scanned documents.

The software can be a little intimidating at first, but it’s relatively straightforward to navigate. That’s thanks to the fact that it uses the same ribbon-style menu as Microsoft Office. Tools for editing, signing, highlighting, and commenting are fairly easy to access. You can also merge or split PDFs by downloading free add-ons for the software. 

Another advantage to Foxit PDF Reader is that it offers security. There’s a Safe Reading mode that allows you to automatically disable Javascript embedded in downloaded PDFs.

Note that with the software's latest update, Foxit seems to have removed its PDF virtual printer driver, meaning you can no longer use the software to create PDFs.

Read our full Foxit PDF Reader review

Best free PDF reader that's fast and lightweight

Operating system: Windows, macOS, Linux

Small download size 

Loads extremely quickly

Can convert file types

Slim PDF is the best free PDF reader if you’re looking for something incredibly lightweight. The software download is really small, so is the perfect choice if you’re limited by hard drive space. Plus, that means that it’s able to open and load your documents faster than most of its competitors.

In our review, we called it "a sleek, minimalist PDF reader that only takes up a couple of megabytes on your hard drive." The downside to this small size is that Slim PDF is pretty basic. You can search and rotate documents, but that’s about it. There are no tools for signing, filling, commenting, or highlighting, let alone multiple reading modes. While there is a menu option to convert a PDF to a Word document, doing this requires another software download. On the other hand, if your needs are similarly simple, the free PDF reader might just be the solution for you.

As a result, Slim PDF is truly just a PDF reader. It does a good job at this, though, leaving out the toolbars that can distract you from what you’re reading. If you frequently need to print PDFs, Slim PDF is one of the fastest and most simple options available.

Read our full Slim PDF review

Best free PDF reader that's feature-rich and packed with tools

Operating system: Windows, macOS

Touchscreen mode 

Plenty of annotation tools

Simple ribbon-style menu

No document signing or filling

The Nitro PDF Reader is another powerful free PDF reader in the vein of Foxit Reader and Adobe Acrobat DC. What makes this tool different is that it has a touchscreen mode that’s perfect if you’re working on a tablet. Touchscreen mode is especially nice for reading e-books, since you can flick the pages rather than scroll or click on a button.

While you can’t fill and sign PDFs with Nitro Reader, the software does a nice job of enabling collaboration. You can annotate documents with underlining and strikethroughs in addition to highlighting. Comments are also supported, and they appear like sticky notes that are easy to spot as you read through a document. Helpfully, the software also allows you to convert between PDF and other document formats.

The software has a ribbon-style menu that will be familiar to Microsoft Office users. The menu is pretty easy to navigate since there aren’t all that many options available in Nitro Reader. Overall, we found the app to be a remarkably powerful free PDF reader that's packed with handy features you'll use time after time, all presented in a clear, adaptable interface.

Read our full Nitro PDF Reader review

Perfect if you need a free PDF reader with built-in OCR

Operating system: Windows

Optical character recognition

Text editing

Splits and extracts pages

Watermarks documents

PC-only

Rather than just being a free PDF reader, PDF-XChange Editor is also a free PDF editing program for Windows. The interface is a little more complex than some others but gives you easy access to plenty of helpful features. 

For most users, the main reason to use PDF-XChange Editor is the fact that it comes with inbuilt Optical Character Recognition (OCR). This means that if your original PDF document is a photocopy, PDF-XChange will still recognize the text and allow you to edit it. Also, PDF-XChange Editor lets you reformat text, and even convert it into fonts that aren’t already loaded on your computer. 

You can use this platform to merge or split individual PDF files. The only serious downside of this powerful editor is that, if you haven’t signed up to the Pro version, a small 'Created with PDF-XChange Editor' watermark will be added at the bottom of any PDF files that you export. 

During our tests, we ultimately felt that while nothing stood out as incredible, there was also nothing that stood out as frustrating or annoying either. Under the right circumstances, it's a great product that has the ability to be your one and only PDF editor without any compromise.

Read our full PDF-XChange Editor review

Best free PDF reader for viewing only

Operating system: Web, Windows, Mac, iOS, Android

Cross-platform with apps for online, on Windows, Mac, iOS, and Android

Customer support is responsive

Plenty of editing tools

No sign-up to read PDFs

Full toolkit  requires subscription

Advanced tools may prove steeper learning curve than most

pdfFiller serves up a very simple free PDF reader experience. If your needs are basic, it’s quick and easy to upload your document and read it via your browser, or through the Windows, Mac, Android, and iOS apps. Not only is the PDF viewing process free, you won’t even need to sign up to read files. 

However, the platform is actually a full PDF editor, with plenty of additional features for document creation and editing like fillable forms, data redaction tools, online collaboration, digital signatures, and PDF converters. After a thorough review process, we ultimately felt that the platform is “a very versatile PDF document management system” for both personal and business use. 

When it comes to a straight PDF viewer, pdfFiller’s free service feels hobbled by the inability to do anything beyond reading files. You can tweak documents, but they’ll remain locked on your dashboard and unavailable as a PDF file. To really get the most from the service - and, to be fair, it offers a fair amount - you’ll need to subscribe to one of three monthly/annual subscription plans. Enterprise licensing is available, too, for teams of ten or more. 

Read our full pdfFiller review 

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When deciding which PDF reader is best to download and use, first consider which parts of your PDF file you need to change. If you’re just trying to add information to a form digitally, you’ll only need a basic editor that supports text insertion.

However, if you need to change the content of a PDF substantially, you’ll require a more powerful PDF software program that can make modifications to text or images already stored in the file. In some cases, especially if you want to change almost all the content of your file, it may be better to use a fully functioning PDF Editor or even the best PDF to Word converter instead.

A PDF reader is a program used to open, view, and print PDF (Portable Document Format) files. First introduced in the 1990s, PDF files are an excellent way to distribute documents containing text, images, and various other media types.

Many modern browsers can read PDF files, but the best free PDF readers still have their place. These dedicated programs give users more ways to interact with the file and offer greater control over how the document appears on the screen.

PDF files were designed to appear and function the same on any piece of hardware, so you'll find PDF readers for Android and other mobile devices too.

Deciding between a PDF editor and a PDF reader comes down to how you'll use the software. PDF readers are primarily designed to view documents - although many include online collaboration tools like commenting, highlighting, and annotating content. Altering a PDF file is often limited to small edits and manipulation. A PDF editor lets you design and create documents from scratch and make large changes. They almost always include powerful tools for power-users, like built-in OCR software and digital signature tools. 

If you keep your computer secure and download PDF software from the official source, you should be well-protected. But, as with many free tools, there are always risks. We've outlined five common reasons why free PDF editors may not be right for your organization - and the issues can be similar with free PDF readers. We've also looked at the main differences between paid-for vs free PDF editors. 

The best free PDF readers feature plenty of tools for viewing and sharing PDF files - however, they're often slightly more limited compared to paid-for counterparts. In many cases, they offer a taste of how the software works, with upgrades and subscriptions that add more tools. If you're only reading PDFs on your computer or mobile device, a browser will likely meet your needs. If you're frequently in and out of documents, making minor edits, and sharing files, a full PDF reader will likely suit you best. 

We test the best free PDF readers against the factors that users care about - from the interface and experience to performance and platform availability.

We also assess each tool against its use-case. Some want a lightweight reader, others need one packed with plenty of other PDF utilities for professional use - so we look at how well the free PDF readers deliver for their intended audience. 

We also ensure that free means free - no hidden charges. Any subscriptions, lifetime licenses, and upgrade fees must be clearly signposted. 

As part of our overall testing process, we've also reviewed and rated free and premium platform-specific PDF readers.

+ Best PDF readers for Windows+ Best PDF readers for Mac+ Best PDF readers for Android

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Best free PDF editor (2023)

The best free PDF editors let you edit, and work together on files without subscriptions or fees. 

Top PDF editors offer everything you need for creating, editing, and collaborating on documents. In many cases, the best PDF editors on the market require a subscription or one-off purchase to access. But you don't need to compromise on features if you don't invest in document editing software. When you need the best PDF editor free, there are plenty of platforms that deliver advanced tools at no charge.

We’ve tested free PDF editors online and for Android, Windows, Mac, iOS, and iPad. As part of our review process, we’ve explored each PDF editor app’s integrated tools and workflows, sized up the best cloud storage offerings, and compatibility - as well as ensuring that every option is a completely free PDF editor. So, you can get on with the job at hand, whether you're designing a document from scratch, you're swapping Adobe for the best Acrobat alternative, or you just the best free PDF eader to view your files. 

We’ve tested, reviewed, and rated the best PDF editors for Windows, Mac, mobile, and online. If it's in budget, we recommend these top three premium picks - bringing professional PDF editing tools into the home or office.

Best free PDF editor overall

Platform: PC

Plan: Free

Developer: Geek Software

Features include: PDF editor, PDF reader, conversion, merging, eSign, OCR

Completely free

Fast and light

Lots of features for every need

Occasionally a bit clunky

Windows-only

PDF24 Creator is our pick for best free PDF editor overall. You may find the website a tad dated, but the tool is surprisingly feature-rich.

The free PDF editor is a very small program that can easily run on older systems - ideal, then, for businesses with limited resources or a suite of low-spec computers.

When we tested the software, we rated it as one of the best free tools, going above and beyond what's expected. It’s full of features, and has everything needed to create and edit PDF documents. While we noted that it lacked more advanced features usually found in premium tools like Adobe Acrobat DC, we felt that most users will find more than enough utility within PDF24 Creator. 

The Windows-only tool serves up a PDF editor for free document creation, PDF merging, PDF compressing, and converting PDFs into other formats. You can even optimize a PDF for the web or apply OCR to a PDF, so that you can convert scanned images to text.

PDF24 Creator has a minimalistic user interface and it’s clear that the program is designed around speed first and foremost. The interface can feel a little clunky at times, but all of the important features are easy to find and when you first open the software, you’re presented with a grid of editing options. And yes, our top choice for best free PDF editor is genuinely free and unlimited, through and through.

Read our full PDF24 Creator review 

Best free PDF editor online

Platform: Web, PC

Plan: Free, Subscription, Perpetual license

Developer: PDF Candy

Features include: PDF editor, PDF reader, conversion, compression, merging, eSign

Free online editor

Loads of features and tools

OCR capabilities

Windows version available

No Mac or mobile apps

Free version only allows for one task each hour

PDF Candy is ideal if you want a free online PDF editor and a way to edit PDF files in your browser. You’ll also find a desktop version available for Windows if you upgrade to the lifetime license. 

Easily one of the best free PDF editors online, it's delightfully simple to use - everything is clean, clear, and easy to navigate. And it's absolutely packed with functionality, with an impressive 47 different tools for editing, altering, converting PDF files, and so much more. During our tests, we found PDF editing as effortless every other function in the software, delighted that "editing text in a PDF file isn’t a million miles away from editing a word processor document."

The free version places a one-task-per-hour limit - e.g., processing an edited PDF file or converting a document. This can be removed by setting up a monthly or annual subscription, or purchasing it outright for a one-off payment. The latter also grants access to the Windows-only desktop PDF editor app. If restriction is too much to bear, and you don't need everything the platform offers, try PDF24 Creator - it's fully free across the board. 

Elsewhere, PDF Candy has a good amount of useful tools and features. This includes the option to edit PDF files online, convert documents to a variety of formats, merge and compress PDFs. 

On top of that, PDF Candy lets you easily extract text and images, resize pages, and add watermarks.  In total, there are an impressive 47 different tools to help you manage and edit PDF files. All features are found in a handy list of buttons, so you won't spend ages looking for what you need. Overall, we found service delightfully simple, but as with even the best free PDF editors, an upgrade unlocks its full potential.   

Read our full PDF Candy review

Best free PDF editor for Android and iPhone

Platform: Web, Windows, Android, iOS

Plan: Free, Subscription

Developer: Smallpdf

Features include: PDF editor, PDF reader, scanner, conversion, compression

Cloud-based

Powerful range of tools

Allows you to convert PDFs to other formats

Cross-platform (for a price)

Can only process two documents per day

Extra cost for desktop app

Smallpdf was created with a single goal in mind: edit and compress PDFs. 

But what sets it apart from the competition is its extensive multi-lingual support, available in 24 different languages and used in 195 countries around the world.  

Long considered one of the best free PDF editors online - you can make all the changes you need from your browser - the user experience is excellent and incredibly easy to use. When we tested Smallpdf, we found the lightweight, cloud-based tool perfect for simple tasks, but not ideal for high-volume editing or advanced features. 

We found using the PDF editor very straightforward. Upload your PDF via the website, and begin making annotations and taking notes. We also liked the option to add pictures, text and shapes to a PDF. Once the necessary changes are made, Smallpdf gave us the option to compress a PDF or export it as a Word, Excel or PowerPoint file.

There are restrictions, as you'll find in many of the best free PDF editors. Chiefly, you're locked to two tasks per day - so a fully free tool like PDF24 Creator or Canva might be a better choice for more consistent use. 

If you want even more functionality, you can upgrade to Smallpdf’s premium edition. While the web version is slightly cheaper, you can pay a bit more to take advantage of the desktop version so you can work offline. Alongside a web PDF editor and Windows desktop app, users can also install the PDF editor on Android and iOS phones.

Read our full Smallpdf review 

Best free PDF editor for Mac

Platform: Mac

Plan: Free

Developer: Apple

Features include: PDF manipulator, reader, highlighter, annotations

Included with all Macs

Image-editing tools included

Can annotate and add signatures to PDFs

Only available for macOS

Lacks OCR

Apple’s Preview app is free, and as you’d imagine, only available on Apple devices like the MacBook. It’s designed to let you preview many different image formats, but its most interesting feature is its ability to view, interact with, and manipulate PDFs.

After testing our choice for best free PDF editor for Mac, we concluded that Apple’s product was a remarkably powerful editor, allowing you to perform what could be considered advanced content manipulation and note taking tools.

The basics are seamless: open a file, scroll through the pages, search for specific words, print the whole document, or just parts of it, fill in specific fields, add notes, it’s all there, and you can’t really ask for an easier-to-use PDF reader.

But Preview goes one better: you can manipulate PDFs files to a certain extent. There's no text editing, but you can reorder pages, rotate them, and even delete them. 

On the downside, despite being one of the best free PDF editors on the market, it lacks OCR tools. But most other functions should cater for most users. For custom PDF creation, you have the option of copying and pasting pages into new documents - as long as those original PDFs allow you to copy their pages.

Read our full Apple Preview review 

Best free PDF editor for designers

Platform: Web, Windows, Mac, iOS, Android

Plan: Free, Subscription

Developer: Canva

Features include: PDF editor, reader, designer

Incredibly easy to use

Free with very few limits

Ideal for designing documents

Lacks advanced tools

Browser-based only

No OCR and eSign tools

Canva’s free PDF editor is a good choice if you’re looking to create documents from scratch or re-edit an existing file. 

Like the platform’s design app and logo maker, the browser-based editor is pure child’s play.  If you’re familiar with Canva’s other free tools, you won’t find any surprises here. And if you’ve never made or edited a PDF document before, it won’t take long to master the tools and build professional-looking assets. Select an element, drag it into position, and that’s that. It offers a decent amount of customization. You’ll also find it packed with stock images and vector graphics that can be added to your file. 

When we reviewed Canva - one of the best free PDF editors with design capabilities - we were especially impressed with its ability to turn existing PDFs into editable documents. Upload your file and the tool smartly identifies the different elements on the page - text boxes, images, background colors, that sort of thing. You’re then free to click and modify (or delete) any of these. 

There is also an app library for added utility. This is where you can connect your cloud storage services, add links, and even create QR codes. This is all free to use, but there is a monthly/annual subscription available, adding business-focused utilities such as brand kits, more cloud storage, premium graphics, and social media scheduling. Subscribers gain access to these across the Canva platform; it’s not limited to the PDF editing tool.

Effortless is, perhaps, the best way to describe this top free PDF editor. But while the tool excels on the design side, it lacks many of the advanced features you’ll find in full-fat software like Adobe Acrobat. There’s no OCR, for example, and no eSign integration. That makes it best for teams and marketing departments largely focused on designing their own PDF assets. 

Read our full Canva PDF Editor review 

Best free PDF editor for minor edits

Platform: Windows, Mac, Android, iPhone, Web

Plan: Free, Subscription

Developer: iLovePDF

Features include: PDF manipulator, scanner, compression, conversion, protection, merge, OCR

Very easy to use

Mostly free online service

Some clever tools

Good for minor document manipulation

Multi-platform

Certain features require subscription

Not a full PDF editor

I Love PDF is an online service that allows you to manipulate PDF files in a number of ways. You can merge files together, split a single one into multiples, and convert documents to and from the PDF format. The only thing you can't do is alter the original content of a PDF, although you can add additional text boxes, images and shapes.

So, it’s not a full PDF editor like Adobe Acrobat DC. In fact, we noted in our review of the PDF editing tool that while it lets you manipulate documents in many ways, the drawback is that you can’t actually change the existing content of these files. You can only add extra text boxes, shapes, images, and the like. 

Despite this, it does contain a number of interesting features that are cleverly implemented. This includes being able to use your phone’s camera to scan pages, and have them appear back on your page on your computer, once done. You can easily add page numbers to every page, or even a watermark, and of course add a digital electronic signature to a document.

The online PDF editor is free, as long as you access it from a web browser. A handful of tools have limited functionality in this way, but should be suitable for most people’s needs. 

If you require more advanced features like OCR and offline PDF editing , then you’ll need to consider subscribing.  

Read our full I Love PDF review 

Best free PDF editor for data security

Platform: Web, Windows, Mac, Linux

Plan: Free, Subscription

Developer: Sejda

Features inlcude: PDF editor, compression, conversion, protection, merge, eSign

No account required

Simple and easy to use interface

Uploaded files are deleted after 2 hours

File size limitations

Time restrictions on free tier

Sejda, like PDF Candy and Smallpdf, is one of the best free PDF editors available online in your browser. You can also grab a separate free downloadable, editable PDF app for desktops. 

What sets it apart from other similar offerings, however, are its security features. All files uploaded to the service are automatically wiped from its servers after two hours. This means you can use it to work on sensitive documents without having to be worried about your data being leaked or stolen.

Sejda as a convincingly power PDF editor - in our tests, we found that using it is incredibly self-explanatory, and it was frankly difficult to fault the tools on offer. On the other hand, we were disappointed by the lack of precision over layout and movement controls. In fact, during our time on the platform, we were noted a big flaw: "While you will find that it is possible to edit text, you're likely to find that fonts are changed, making it apparent precisely where edits have been made."

Sejda also offers a desktop version with the biggest difference being that all of the processing is handled locally as opposed to in the cloud. Regardless of which free version you choose, Sejda limits you to working on a maximum of three tasks per day, one file at a time and files can’t be larger than 50MB or 200 pages.

In addition to being able to edit PDF text, you can add new text as well as images including shapes and drawings. Sejda also lets you add annotations, create forms, whiteout sections of a document and more. However, it's worth noting that free users will get hit by the file size and time restrictions. For those that do decide to upgrade, Sejda is available as a weekly, monthly or annual subscription though there are discounts for larger teams with multiple users.

Read our full Sejda review 

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When deciding which free PDF editor is best for you, make a list of the must-have feature-set needed by you and your team. Not all free Adobe Acrobat alternatives are created equally. For example, if you’re bulk-editing, a tool like PDF24 Creator will serve you better than SmallPDF. 

Consider which bits of your PDF file you need to change. If you’re just trying to add information to a form digitally, you’ll just need a basic editor that supports text insertion.

However, if you need to change the content of a PDF substantially, you’ll require a more powerful PDF editor that can make modifications to text or images already stored in the file. In some cases, especially if you want to change almost all the content of your file, it may be better to use a dedicated PDF converter instead. 

Other advanced features to look out for, depending on your workflow, are built-in PDF conversion, OCR software, and eSign software. Cloud storage is another factor, so check the free PDF editor supports platforms like  Google Drive and Dropbox.

Most modern browsers have free PDF reader capabilities if that’s all you need

A PDF editor lets you assemble a Portable Document Format (PDF) file from scratch, as well as amend the content of existing PDF files. The format was released by Adobe in 1993 as a way to standardize documents viewed across different platforms, devices, and screens. Most PDF editors come with the ability to convert, or batch convert, common file types such as Microsoft Office’s Word, Powerpoint, and Excel to and from the PDF format. You’ll also find more advanced tools like optical character recognition (OCR) software. 

Whether or not a free PDF editor is best for you will largely depend on how you’ll use it, and where. While there are some free PDF desktop apps that work offline, they don’t always feature multi-platform and mobile support. Many others are only available online in your browser. You'll find some have extra features, like PDF merging tools and PDF compressors. But others are bereft of anything but the basics. So, it can be hit-and-miss. Free PDF editors can also impose usage limits, such as the amount of files you can import, or export, per day. As such, they’re often better for light users, or to get a taste for the tool.  

Free PDF editors are popular - but they're not always the best solution, particularly for data-conscious and data-compliant businesses. It's worth being aware of some of the reasons why organizations often tend to go premium in our guide 5 reasons why you should avoid free PDF editors

All PDF editors are designed differently - although tools and layouts follow a similar pattern. We’ve covered several ways to alter documents in the most popular paid-for and free PDF editors with our guide How to edit a PDF.

We've also highlighted the best method in Sedja PDF editor in our guide How to edit a PDF for free.

PDF24 Creator is a completely free PDF editor. It's free of charge, free of spyware, and it's our pick for best free PDF editor overall. But there are loads of amazing free PDF editing software depending on your needs and device/platform - many also include paid-for upgrades for premium features. 

To test for the best free PDF editors, we first set up an account with the relevant software platform, whether as a download or as an online service. 

We then tested the service using a handful of PDF files to see how the PDF editor could handle editing not just text, but also images, as well as tables imported from Microsoft Excel. 

The aim was to push each software platform to see whether it could simply and easily not just edit a range of content types but also do so faithfully and consistently without introducing formatting issues or similar problems.

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