PDF Forms & Signatures — Free Online Tool

Fill standard PDF AcroForm fields in-browser, download a starter fillable template, link to drawn signatures, preview SaaS-style multi-signer roadmap, and…

Frequently asked questions: Why does my LiveCycle / XFA form look broken? pdf-lib removes XFA attachments when loading PDFs. Pure XFA workflows require Adobe LiveCycle or conversion to classic AcroForm fields first. Does signature validation prove a PDF is authentic? No—the validate tab only searches for common signing-structure markers. True verification checks certificate chains, revocation, and integrity with PKI tooling.

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Frequently asked questions

Why does my LiveCycle / XFA form look broken?
pdf-lib removes XFA attachments when loading PDFs. Pure XFA workflows require Adobe LiveCycle or conversion to classic AcroForm fields first.
Does signature validation prove a PDF is authentic?
No—the validate tab only searches for common signing-structure markers. True verification checks certificate chains, revocation, and integrity with PKI tooling.