OxnaPDF and Adobe Acrobat Compared
The PDF tools people pay Adobe for, free.
Acrobat Studio is the Adobe plan that includes every feature below, AI Assistant among them: £296.93 a year, prepaid, including VAT, on Adobe's UK site, 6 November 2026. OxnaPDF is free, with no account.
Free in Both
| OxnaPDF | Adobe Acrobat | |
|---|---|---|
| Read and print PDFs | OxnaPDF免费 | Adobe AcrobatFree (Reader) |
| Comment, highlight and draw | OxnaPDF免费 | Adobe AcrobatFree (Reader) |
| Fill in forms and sign | OxnaPDF免费 | Adobe AcrobatFree (Reader) |
Free in OxnaPDF, Paid in Acrobat
- Edit the text in a PDF
- Convert to Word, Excel and PowerPoint
- Organise pages: reorder, rotate, delete, split, combine
- Password-protect a PDF
- Everything in Standard, plus:
- 比较两个 PDF
- Make scanned pages searchable (OCR)
- Redact, so removed text is really gone
- Everything in Pro, plus:
- Ask AI about your document
Prices are Adobe's own for the UK, including VAT, for an annual plan paid monthly, read on 6 November 2026. Monthly plans cost more.
Both Work Inside ChatGPT and Claude
Only in OxnaPDF
Linux. OxnaPDF runs on Linux (x64 and ARM64) as well as Mac and Windows. Adobe lists Acrobat Reader for Windows, macOS, iOS and Android.
AI that works offline. Local AI (Ollama, LM Studio or another local model) answers on your computer, with no internet. Adobe's pages offer no offline AI.
Your choice of AI. OxnaAI, ChatGPT, Claude or Local AI, using your own plan where you have one.
Gemini CLI and Antigravity. OxnaPDF has an extension for them. Adobe in Gemini covers Photoshop, Lightroom, Express and Firefly; Adobe does not list Acrobat there.
A Claude Desktop extension that runs on your computer, so your files stay on your device.
No account, ever. The app, the 51 online tools and Local AI need no sign-up.
Measured on the Same Mac
Both apps were measured alternately on the same Mac at the same time (Apple M3 Max, 36 GB, macOS 26.7) on 6 November 2026. Each figure is the median of 5 runs after a warm-up.
| Measurement | OxnaPDF 1.11.17 | Adobe Acrobat (26.002) | OxnaPDF Advantage |
|---|---|---|---|
| MeasurementWindow open, 500-page report | OxnaPDF 1.11.170.79 s | Adobe Acrobat (26.002)1.02 s | OxnaPDF Advantage23% faster 23% faster (1.3× · 0.23 s quicker) |
| MeasurementBusy until quiet, 500-page report | OxnaPDF 1.11.173.1 s | Adobe Acrobat (26.002)14.0 s | OxnaPDF Advantage78% faster 78% faster (4.5× · 10.9 s less wait) |
| MeasurementMemory, 500-page report open | OxnaPDF 1.11.17445 MB | Adobe Acrobat (26.002)694 MB | OxnaPDF Advantage36% less memory 36% less memory (249 MB lighter) |
| MeasurementSize on disk | OxnaPDF 1.11.17300 MB | Adobe Acrobat (26.002)1.7 GB | OxnaPDF Advantage82% smaller 82% smaller (5.7× · 1.4 GB less disk space) |
| MeasurementLeft running after you quit | OxnaPDF 1.11.17Nothing | Adobe Acrobat (26.002)1 helper | OxnaPDF Advantage100% clean exit 0 left running (vs 1 helper) |
| MeasurementBackground services installed | OxnaPDF 1.11.17None | Adobe Acrobat (26.002)3 (Acrobat updater) | OxnaPDF Advantage100% fewer services 0 background services (vs 3) |
The full method is on How Fast.
Where Acrobat Is Ahead
If you rely on these, Acrobat is the better choice:
- sending documents to other people for e-signature, and tracking their replies;
- web forms;
- Adobe's cloud storage;
- iOS and Android apps.
Sources
- Adobe Acrobat plans and pricing (UK): https://www.adobe.com/uk/acrobat/pricing.html, read 6 Nov 2026.
- Standard: create, edit, convert, export and organise PDFs; e-signatures; password-protect; forms.
- Pro: adds compare, redact and editable scans.
- Studio: adds AI.
- Annual prepaid prices: Standard £178.85, Pro £238.75, Studio £296.93.
- Adobe Acrobat Reader: https://www.adobe.com/acrobat/pdf-reader.html, read 6 Nov 2026. It covers view, print, share, comment, fill and sign, and lists Windows, macOS, iOS and Android.
- Adobe blog, 24 Sep 2026, "Adobe comes to Gemini and expands what you can do in Claude": https://blog.adobe.com/en/publish/2026/09/24/adobe-comes-to-gemini-expands-what-you-can-do-in-claude
- Adobe for ChatGPT: https://helpx.adobe.com/creative-cloud/apps/integration-with-other-apps/adobe-connectors/adobe-for-chatgpt.html
- Our timings: How Fast
Adobe, Acrobat and Acrobat Reader are trademarks of Adobe Inc. OxnaPDF is not affiliated with or endorsed by Adobe. Adobe's prices and features may change; check Adobe's website for the latest.