Last checked October 15, 2026
Best Free Alternatives to Adobe Acrobat (2026)
Acrobat is how a lot of offices edit a PDF, fill a form, merge files, and export to Word. The open-source field does not include a single app that does all of that well. LibreOffice Draw can open and change a PDF, with layout risk. Stirling-PDF and PDFsam Basic are the tools for merge, split, and rotate, and they are not page editors.
What Adobe Acrobat costs
Acrobat Standard and Acrobat Pro are paid subscriptions. A dollar figure that stayed visible in plain text on Adobe's plans page was not captured in this check, so none is stated.
Adobe's plans page describes Standard as basic PDF work and Pro as Standard plus more PDF and e-sign tools. The page also says perpetual Acrobat sales stopped after Acrobat 2020, with Acrobat Pro 2024 sold as a one-time desktop term. Checkout widgets on that page did not leave a stable plain-text price.
Ranked by Drop-in score
How we rank#1 is the highest-scoring alternative that is not sponsored. A featured listing, when one is sold, is labeled and sits after #1.
- #1 · Best drop-inOpen source
LibreOffice
A desktop suite that opens Office files.
Last checked October 15, 2026 · MPL-2.0
MacWindowsLinux - #2Open source
Stirling-PDF
A local toolbox for PDF chores.
Last checked October 15, 2026 · MIT (core)
WebSelf-host - #3Open source
PDFsam Basic
A desktop app that splits, merges, and rotates PDFs.
Last checked October 15, 2026 · AGPL-3.0
MacWindowsLinux
Feature by feature
Full is the whole job. Partial is a real version with a gap. Missing means it does not do this. Not checked counts as zero in the score.
Scroll sideways to compare every alternative.
| Feature | LibreOffice#1 · 57 | Stirling-PDF#2 · 45 | PDFsam Basic#3 · 32 |
|---|---|---|---|
| Open and read a PDFWeight 6 | FullDraw opens a PDF. | MissingA toolbox, not a reader. | MissingIt manipulates pages. It is not a reader. |
| Edit text and pagesWeight 10 | PartialYou can change text after import. Layout often moves. It is not Acrobat's in-place editor. | MissingMerge, split, convert, and redact. Not in-place text editing. | MissingNo text or paragraph editing. That is the paid PDFsam editor, which is not this app. |
| Merge, split, and rotateWeight 8 | Missing | Full | FullMerge, split, rotate, extract, and mix, offline. |
| Convert to or from PDFWeight 6 | FullExport PDF, and open office files. The reverse path into Word is a different app. | Full | Missing |
| Fill in a formWeight 4 | PartialForm fields can be edited in Draw. Filling a locked official form in place is not the same. | Missing | Missing |
| Sign a PDFWeight 4 | Missing | MissingThis listing is explicit that Stirling-PDF is not a signature-request product. | Missing |
| Works on the local machineWeight 6 | Full | FullThe community container runs on your machine. | FullThe project says files are not uploaded. |
Real cost
LibreOffice
- Free tier
- The desktop apps are free to download.
- Hosted plan
- No hosted price recorded.
- Self-hosting
- Not a self-hosted product. The desktop apps are not a server. Collabora Online is the browser version.
Stirling-PDF
- Free tier
- The community edition can be self-hosted without a per-user fee. Hosted prices are not copied here. Unverified.
- Hosted plan
- No hosted price recorded.
- Self-hosting
- Easy. A Docker container covers the MIT feature set.
PDFsam Basic
- Free tier
- PDFsam Basic is free, with no watermark and no file-size limit, according to the project.
- Hosted plan
- No hosted price recorded.
- Self-hosting
- Not a self-hosted product. A desktop app. Files stay on the machine. There is no server edition in this listing.
Did you switch?
If you left Adobe Acrobat, tell us whether it worked and how long it took. Notes stay private until we approve them, and nothing is shown until at least five are approved.
Top pair
Migrate from Adobe Acrobat to LibreOffice
Open the PDF in Draw, change what you must, and export a new PDF. Layout is the thing that breaks.
Read the migration guide