PDF tools / Compare
Adobe Acrobat online vs PDF24 Tools
Both do 10 of the same PDF tools tasks. Below is what each says about its own limits and pricing, and how each ranks on signals we can measure or quote.
Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.
A
Adobe Acrobat online
Adobe's free online PDF tools, from Adobe, Inc.
Signals score: 3.9 / 5 · not a hands-on test
Visit www.adobe.com/acrobat/online.htmlB
PDF24 Tools
Free online PDF tools and a desktop app by geek Software GmbH (Berlin, Germany).
Signals score: 4.0 / 5 · not a hands-on test
Visit tools.pdf24.org/enPricing, limits and privacy
- Free tier
- A: Free tools with limits per tool, for example merge up to 100 files and 1,500 pages, split up to 1 GB and 1,500 pages, Word to PDF up to 100 MB, compress up to 2 GB with limited use. PDF to Word has a daily limit whose number is not stated.
- B: Says all tools are free without restrictions and that there are no artificial limits. File-size limits are not stated.
- Paid plan
- A: Acrobat Standard from US$14.99 a month on an annual plan billed monthly, US$179.88 a year prepaid, or US$24.99 month to month.
- B: No paid plan found. It says the service is funded by advertising.
- Signup
- A: Depends on the tool. Merge and compress say no signup; split, OCR and edit ask you to sign in to download; Fill & Sign requires it.
- B: No registration required.
- Watermark
- A: Merge and PDF to JPG say no watermark. Not stated for the other tools.
- B: Not stated.
- Where files go
- A: Files are uploaded to Adobe's cloud servers and deleted unless you sign in and save them. No retention time is stated.
- B: Files are uploaded to PDF24's servers in EU data centres and usually deleted within one hour. The free PDF24 Creator desktop app works offline.
From each tool's own pages, checked 2026-10-31. Prices and limits change; check the tool before you rely on them. Sources are listed on each tool's page.
Compare on a task
Neither tool has been hands-on tested on these tasks yet, and we do not guess. Open a task to see both ranked with every other tool.
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