Universal PDF: Editor & Signer

A PDF editor and signer. Universal PDF opens, fills in, signs and marks up PDFs on your phone. The work happens on the device: your document is not uploaded to be shown or edited, and there is no copy on our servers unless you press a button that says so.

FILL IN AND SIGN
• Type straight into a PDF's form fields.
• Draw your signature, or import one, and place it on the page.
• Add your name, the date or a stamp with it.
• Add "Sign here" boxes and send the document to someone else to sign (needs a Universal ID).

MARK IT UP
• Highlighter, free drawing and text.
• Ticks, crosses, lines, boxes and circles.
• Place pictures and QR codes on a page.
• Redact text so it cannot be read by people or by machines.

MORE TOOLS
• Compress one PDF or several.
• Merge PDFs into one.
• Turn PDF pages into PNG or JPG images, and images into a PDF.
• Make a scanned PDF searchable.
• Open Word (.docx) and OpenDocument (.odt) files as PDFs.
• Turn pasted Markdown into a PDF.
• Lock a PDF with a password.
• Present a document full screen.

YOUR FILES STAY YOURS
• Opening, filling in, signing and marking up happen on your phone.
• Recent files are remembered on this device only.
• No ads, no tracking, no third-party analytics.
• A Universal ID is optional. It adds send to sign, and you can delete the account from inside the app.

GOOD FOR
• Signing a contract, a lease or a school form.
• Filling in an application without printing it.
• Marking up a report or a set of drawings.
• Making a PDF small enough to email.
• Turning photos of receipts into one PDF.

Universal PDF is free and open source (AGPL-3.0). The code, and a page explaining exactly what leaves your device and when, are on GitHub: github.com/universal-simulation-ltd/Universal_PDF

Built by James Markey MBE and the UNI·SIM team.

Recent changes:
Privacy and export fixes: a locked PDF never leaves an unlocked copy in Recent files; redaction covers your own marks; rotated and cropped pages export correctly; Turkish, Greek and Cyrillic letters export; form checkboxes, radio buttons and dropdowns work; WebP and GIF pictures export; Ctrl + / − / 0 zoom.