A private alternative to Adobe Acrobat online tools
Adobe created the PDF format, and Acrobat remains the reference editor. Its free online tools upload your file to Adobe's cloud, and several ask you to sign in before downloading. PDF100 is a lighter option for everyday tasks that never sends your file anywhere.
Free100 PDF toolsNo accountFiles stay on your device
Popular right nowMerge PDFCompress PDFPDF to WordSign PDFSplit PDF
The short version
Based on Adobe Acrobat online's published pages, checked October 2026. Policies change, so follow the sources below for current details.
| Aspect | Adobe Acrobat online | PDF100 |
|---|---|---|
| Where the work happens | Adobe's cloud services | Inside your browser, on your device |
| File upload | Required | None. The file is read locally and never sent to PDF100 |
| Sign-in | Required for some tools and downloads | None, and none possible |
| Free usage | Limited free online tools; Acrobat is paid | All 100 tools, no daily cap |
| Practical size limit | Set by service | Your device's memory |
What PDF100 does instead
PDF100's tools are code that runs in the page you are looking at. Your browser opens the file, your own processor does the work, and the result is saved straight back to your disk. There is no upload step to secure, no retention period to publish and no server copy to lose.
Check it in thirty seconds
Open any PDF100 tool, open your browser's developer tools, switch to the Network tab and run a file. Nothing carrying your document goes out. Or load the page, turn off Wi-Fi and keep working. Here is the full method, which works on any site.
Where Adobe Acrobat online is the better choice
This page is not trying to win an argument. If you need any of the following, Adobe Acrobat online is the right tool:
Adobe Acrobat online wins
Full editing
Acrobat edits existing text and layout in place, reflowing paragraphs. PDF100 adds content on top of pages.
Adobe Acrobat online wins
Certified e-signatures
Acrobat Sign provides legally certified signing workflows and audit trails. PDF100 places a visual signature only.
Adobe Acrobat online wins
Accessibility and prepress
PDF/UA tagging, preflight and print production tools are Acrobat strengths.
Tool for tool
The closest PDF100 equivalent for each job. These are equivalents, not a claim of feature-for-feature parity.
| On Adobe Acrobat online | On PDF100 |
|---|---|
| Compress a PDF | Compress PDF |
| Merge PDFs | Merge PDF |
| Convert PDF to Word | PDF to Word |
| Fill & Sign | Sign PDF |
| Rotate pages | Rotate PDF |
| Password protect | Protect PDF |
Try it on a document you would not have uploaded
That is the test that matters. Pick the file you hesitated over and watch it never leave.