Last updated: November 3, 2026. Prices and features change, so we checked vendor pages and recent reviews. Sources are listed at the end.
Adobe Acrobat Pro costs $19.99 a month on an annual plan, or $29.99 a month if you pay month to month, according to a September 2026 pricing breakdown. Most people only need to fill in a form, sign a contract or merge a couple of files now and then, so a monthly fee is hard to justify. This guide covers the free tools that handle those jobs, and tells you where each one falls short.
Key takeaways
- For quick signing, filling and commenting on Windows, Microsoft Edge is already installed and works offline.
- PDF24 Creator is the best all-round free download for merging, splitting, compressing and OCR on Windows.
- Stirling PDF is the most powerful open source option and runs on your own machine or server.
- LibreOffice Draw is free but awkward for anything beyond small fixes.
- PDF-XChange Editor has a generous free tier, but some features add a demo stamp.
- Acrobat Reader is free for viewing, printing and basic comments. The paid Pro plan is for full editing.
- For sensitive documents, use an offline tool rather than an online converter.
The Best Free Adobe Acrobat Alternatives at a Glance
| Tool | Best for | Truly free? | Uploads your file? |
|---|---|---|---|
| Microsoft Edge | Quick fill, sign and markup | Yes, built in | No, runs locally |
| PDF24 Creator | Best free all-rounder on Windows | Yes | Desktop app runs locally; the website tools upload files |
| Stirling PDF | Most powerful open source toolkit | Yes, open source | No, runs on your device or server |
| LibreOffice Draw | Small text fixes, free and open source | Yes | No, runs locally |
| PDF-XChange Editor | Feature-rich free tier | Partly, some features add a demo stamp | No, runs locally |
| Okular | Reading and annotating on Linux | Yes, open source | No, runs locally |
| Apple Preview | Mac users | Yes, built in | No, runs locally |
What Does Free Mean for PDF Software?
The word free covers three different things in this category:
- Forever-free: no trial clock and no paywall for the basics.
- Freemium: free, but with a limit such as a demo stamp, a page cap or a locked feature.
- Trial-only: fully featured for a few days, then it stops unless you pay. Adobe’s own Pro trial is 7 days and needs a card at signup.
Where a tool is freemium, we say so below.
Microsoft Edge: The One Already on Your Computer
Every Windows 10 and 11 PC already has Edge, and it doubles as a basic PDF tool. Open a PDF and you can highlight text, add comments, draw with a pen, fill simple forms and add a signature. It is not a full editor, so you cannot rearrange pages or edit the underlying text. For signing a form or leaving comments, it is the fastest free option, and the file stays on your computer.
PDF24 Creator: Best Free All-Rounder for Windows
PDF24 Creator is a free Windows toolbox for merging, splitting, compressing, converting and rotating PDFs, and it includes OCR, which turns scanned pages into text you can search and copy. It is offered as a free download, though we have not tested for watermarks ourselves, so try it on a non-critical file first. Use the downloadable desktop app rather than the website tools if privacy matters, because the website tools process your file on PDF24’s servers. Download only from the developer’s own site.
Stirling PDF: Most Powerful Open Source Option
Stirling PDF describes itself as open source, self-hosted and yours to run any way you like. Its download page offers desktop apps for Windows, Mac and Linux, plus a Docker image and other self-hosting options. Because it runs on your own machine or server, your files do not go to a third party. It covers a long list of PDF tasks, including OCR, encryption and redaction. It takes more setup than PDF24 if you self-host, so check its pricing and license page before using it in a business.
LibreOffice Draw: Free, With Caveats
LibreOffice is free and open source, and its Draw app can open a PDF and let you change text and images. The catch is how it works. According to a comparison from a competing vendor, Draw converts the PDF into separate graphic objects, so new words can stretch a text box sideways instead of wrapping, and layouts on multi-page documents may shift. That source has a commercial interest, so test it on your own file. In short, Draw is fine for fixing a typo on a single page and a poor choice for contracts or multi-page reports.
PDF-XChange Editor: Rich Free Tier With a Catch
PDF-XChange Editor offers annotation, OCR and image editing that go beyond most free software. The free version stamps a small demo mark on output when you use features that require a license. The company explains this in its knowledge base article on demo stamps. If you only read, annotate or fill forms, you may never see it. Check which features are licensed before you rely on it for a final document.
Okular and Apple Preview
Linux users can use Okular, an open source viewer that supports annotations. Mac users already have Preview, which handles basic merging, signing and markup without any download.
Does Your Free PDF Tool Upload Your File?
Online PDF tools, where you drag a file onto a website, usually work by uploading your document to the company’s server, processing it and sending it back. For a flyer or a worksheet, that is fine. For a signed contract, a tax form or a medical record, you do not always know how long the company keeps a copy or where its servers are. Tools that run locally never send your file anywhere. Edge, LibreOffice, Stirling PDF, Okular, Preview and the PDF24 desktop app all work this way.
A simple rule: use an offline tool for anything you would not want a stranger to read. This is the same habit that helps you avoid oversharing in other places, as our guide on protecting your data online explains.
Is There an Adobe Acrobat Alternative With No Subscription?
Yes. Every tool above, except where we noted a demo stamp, needs no subscription and no card. The trade-off is fewer advanced features than Acrobat Pro, such as team e-signature workflows or Adobe’s cloud storage. Most people editing, filling, merging and signing at home never miss them.
How to Choose the Right Free Alternative
- Occasional light editing on Windows: Edge or PDF24 Creator.
- OCR, redaction or heavier jobs: Stirling PDF.
- A quick fix on a one-page PDF: LibreOffice Draw.
- Feature-rich and you can live with a stamp: PDF-XChange Editor.
- Linux: Okular. Mac: Preview.
- Sensitive documents: any offline tool, not a website converter.
How to Edit a PDF for Free on Windows (Step by Step)
- Download PDF24 Creator from the developer’s own website, not a third-party download site.
- Install it like any Windows program.
- Open PDF24 and drag your PDF into the tool.
- Choose what you need: merge, split, rotate, compress, sign or OCR.
- Save the file. If you use the desktop app, it stays on your computer.
Frequently Asked Questions
What is the best free alternative to Adobe Acrobat?
For most Windows users, PDF24 Creator is a strong all-round pick, and Edge covers quick signing and comments. If you want open source, Stirling PDF is the most capable.
Is Adobe Acrobat Reader free?
Yes. Reader lets you view, print and add basic comments. Editing and conversion need the paid Acrobat Pro plan.
Can I get Acrobat Pro for free?
Not on an ongoing basis. Adobe offers a 7-day free trial of Pro that needs a card, then bills you if you do not cancel.
What is the best open source Acrobat alternative?
Stirling PDF for features, LibreOffice Draw if you want something simple to install and only need small fixes.
Can I edit a PDF for free without installing anything?
You can fill, sign and comment in Microsoft Edge on Windows or Preview on a Mac. For deeper edits you need one of the installed tools.
Are free online PDF editors safe for sensitive documents?
Be cautious. Most upload your file to their servers. Use a local, offline tool for anything with personal, financial or medical details.
What is the best free Acrobat alternative for Mac?
Preview handles basics on every Mac. Stirling PDF and LibreOffice also run on macOS.
The Bottom Line
You do not need a monthly Adobe subscription to fill, sign, merge or lightly edit a PDF. Start with Edge or PDF24 Creator on Windows, Preview on a Mac, or Stirling PDF if you want open source power. Keep browser-based converters for files that do not matter, and keep anything personal on an offline tool.
How We Researched This Guide
We compared the vendors’ own pages with independent write-ups and note where a claim comes from a single source. We did not run a lab test of every tool for this update. Prices and licenses can change, so check the vendor’s site before you pay or deploy a tool at work.
