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Everything about working with PDFs online

27 free PDF tools — merge, compress, edit, sign, protect and convert PDFs without installing anything. Every operation runs in your browser. Step-by-step guides live in the blog.

Combine & convert

Edit & fill

Secure & protect

Compress & optimize

Why use OpenTool for PDFs?

100% in your browser

Your documents are processed locally — they are never uploaded to a server, so you can safely work with sensitive contracts, IDs and financial files.

Free, no limits

No signup, no watermarks, no daily file caps. Merge a hundred-page PDF or compress a 100 MB document without paying.

Complete workflow

Every task you'd open Adobe for — combine, split, edit, sign, redact, convert — is covered by a dedicated free tool, paired with step-by-step guides.

Frequently Asked Questions

Are these PDF tools really free?

Yes - every PDF tool on this page is free with no signup, no watermarks on output and no daily usage caps. All processing runs locally in your browser, so your files are never uploaded.

Which PDF tools work without uploading my file?

All of them. Compression, merging, splitting, rotating, watermarking, page deletion, reordering, signing, page numbers, text extraction and conversions like PDF to JPG or JPG to PDF all run entirely in your browser. To convert Word, Excel, PowerPoint or HTML files into a PDF, use the Convert category.

Can I edit an existing PDF's text?

The Edit PDF tool lets you add text boxes, images, drawings and highlights anywhere on a page. Rewriting embedded paragraph text is different - extract the text first if you need the raw content.

What is the maximum file size I can process?

Tools handle large documents limited mainly by your device memory - typically hundreds of megabytes for browser-based jobs.

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