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PDF

5 of 7 tools work right now

Merge, split, sign or compress PDFs, without an Adobe subscription and without upload. PDFs are processed locally in your browser via pdf-lib.

Frequently asked questions

How big can a PDF for email be?

Most mail providers allow attachments up to 20-25 MB. Gmail: 25 MB. Outlook (Office 365): 20 MB for most accounts. Above that the mail often doesn't arrive without warning. Our compressor brings an average PDF down to 30-60% of its original size without visible quality loss.

How does a digital signature in a PDF work?

Two kinds. A 'visual' signature is an image of your signature placed on a PDF, what our signing tool does. A 'qualified electronic signature' (eIDAS) is cryptographically anchored and legally equivalent to a wet signature, that needs a separate service. For most contracts and forms, the visual variant is fine.

What's the difference between PDF and PDF/A?

PDF/A is an archival variant: all fonts embedded, no external links, no scripts, no encryption. Designed to still be readable in 20 years. Required for archiving by governments, lawyers and accounting-bound businesses. For daily use (merging, signing, compressing) regular PDF suffices.

Other categories

This tool runs entirely in your browser. Nothing is uploaded or stored on a server.

PDF tools — Plainjar