Adobe Acrobat Alternative
Free Adobe Acrobat alternative: compress, merge, split, rotate and watermark PDFs in your browser. No subscription, no upload and no daily limits.
Last updated:
| Feature | Adobe Acrobat | StaxFree |
|---|---|---|
| Compress PDF | ✅ | ✅ |
| Merge PDFs | ✅ | ✅ |
| Split / extract pages | ✅ | ✅ |
| Rotate pages | ✅ | ✅ |
| Add watermark | Yes, in paid Acrobat | ✅ |
| Add page numbers | Yes, in paid Acrobat | ✅ |
| Image to PDF | ✅ | ✅ |
| Password / encryption | ✅ | ❌ |
| OCR (scan → text) | ✅ | ❌ |
| PDF → Word with reflow | ✅ | ❌ |
| E-signature workflows | ✅ | ❌ |
| Where files are processed | Online tools: on Adobe's servers (deleted automatically, per Adobe). Desktop app: on your device. | In your browser |
| Free use of the online tools | Free with limits; unlimited use needs a paid plan, per Adobe's Compress PDF page | No account, no daily limit |
| Price | Subscription (see Adobe's plans page) | Free |
Shrink a PDF to a size you choose, in your browser.
Combine multiple PDFs into one. Drag to reorder.
Extract specific pages or split into sections.
Add a text watermark to every page.
Format and position numbers across pages.
Convert JPGs, PNGs, screenshots into one PDF.
For an even broader privacy-first comparison, see our Smallpdf alternative page.
Why look for an Adobe Acrobat alternative?
Adobe Acrobat is the industry standard for PDF and is sold mainly as a subscription (see Adobe's plans page for current prices). This page is an independent comparison, last checked against Adobe's Acrobat pages on 15 October 2026. The table column "Adobe Acrobat" means the paid Acrobat apps; Adobe also offers several of these jobs as free online tools with limits, and Acrobat Reader, the free viewer, does none of them. Stax is not affiliated with Adobe. Common reasons to open Acrobat are compressing a too-large PDF, merge several into one, split out a few pages, rotate a misoriented document, add a watermark, add page numbers, convert an image to PDF, or password-protecting a file. Several of those jobs do not need a subscription or to leave your computer. Stax handles the first seven free, in your browser and without signup; password protection is not offered yet.
Where each tool wins
Pick Adobe Acrobat if you need OCR on scanned documents, PDF-to-Word conversion, e-signature requests or accessibility tooling. Pick Stax for the everyday jobs it covers (compress, merge, split, rotate, watermark, page numbers and image to PDF), free, with no file uploaded.
Who may still need Adobe Acrobat
If you collect signatures from other people, convert scanned records into searchable text, edit text inside a PDF or check a document for accessibility, Acrobat is built for that and Stax is not. If your task is one of the seven jobs Stax covers, such as a student submitting an assignment, a freelancer sending an invoice or a small business filing a form, you can do it with Stax for free.
Privacy case for browser-only PDF processing
A typical month's PDF tasks might include compressing a bank statement to email your CA, merging hospital reports for an insurance claim, watermarking client proposals before sharing, and rotating a scanned form before submitting to a government portal. All four involve sensitive documents you would not want passing through a third-party server. Browser-based PDF processing avoids the upload step: your files are processed by JavaScript inside your own browser tab and are not sent to a server.
Eight common PDF jobs
(1) Compress — email attachments and upload forms often have size limits. (2) Merge — combine multiple scanned pages or separate documents into one file. (3) Split — extract pages 3–7 from a 50-page report. (4) Rotate — fix scanned pages that came out sideways. (5) Watermark — mark drafts as CONFIDENTIAL or DRAFT before distributing. (6) Page numbers — add footers to reports and proposals. (7) Image to PDF — convert phone-scanned receipts to a single PDF. (8) Encrypt — password-protect sensitive documents before emailing. Stax does not offer this yet, so use a desktop tool for it. Stax covers the other seven with no account required.
Frequently asked questions
- Is Stax actually a free Adobe Acrobat alternative?
- For the everyday jobs, yes. The seven core PDF operations (compress, merge, split, rotate, watermark, page numbers, image-to-PDF) all run in your browser. Stax does not cover password protection and encryption, OCR on scanned PDFs, PDF-to-Word conversion, e-signature requests, redaction or accessibility checking. Adobe offers those in Acrobat.
- Do I need to install anything?
- No. Stax PDF tools run entirely in your browser using pdf-lib and PDF.js — both open-source libraries from Mozilla and the broader JavaScript community. Open the page, drop your PDF, get the output. No installation, no login, no Adobe Creative Cloud subscription. Works on Chrome, Firefox, Safari, Edge, and mobile browsers.
- How does Stax compare to Smallpdf, iLovePDF, and other web tools?
- Most Smallpdf and iLovePDF tools process your PDF on their servers, which is fine for non-sensitive files but a privacy question for legal documents, contracts and medical records. Both have free-plan limits and paid plans; check their sites for the current terms. Stax is browser-only, so your file never leaves your machine, and there is no usage limit because there is no server to pay for.
- Can I edit text inside a PDF on Stax?
- Not yet — full text-editing inside a PDF requires either OCR (for scanned PDFs) or sophisticated content-stream editing for native PDFs. Both are roadmap items. For now, if you need to edit text, the workflow is: convert PDF → DOCX (Adobe, Smallpdf, or DocLib), edit, export back to PDF. For watermarking, page numbers, headers, and adding pages — Stax handles those today.
- Is Stax safe for confidential PDFs?
- Your PDF is processed inside your browser and is not sent to a server, and you can check this in about 30 seconds. Open Chrome DevTools → Network tab, filter for POST requests, drop your PDF onto a Stax PDF tool and run it. You will see page files load and some requests to analytics and advertising scripts (the privacy page lists them), but no request carries your file. Adobe's help pages say its online tools process files on Adobe's servers and delete them automatically, and Smallpdf says most of its tools process files on its servers, so the same check on those tools should show an upload. Whatever you use, read its privacy documentation too.
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