1
Create signature
Draw with signature_pad or type a name as script.
Loading page…
Sign PDF online by drawing or typing a signature, then stamping it on a page. This is single-party self-sign — not certificate e-sign or multi-party audit trails. Perfect when you just need a wet-ink style mark.
PDFSelf-sign only — no certificate audit trail. Need a signature PNG alone? Use Signature Generator.
Signatures never upload to SortMyFile.
Draw with signature_pad or type a name as script.
pdf-lib embeds the PNG on the chosen page. Download the signed file.
Draw or type a signature and stamp it on a PDF (single-party, not e-sign) — A portal rejects the file shape and you must fix it without desktop Acrobat. You inherited a messy packet from a scanner or email thread and need a clean file before a form upload.
Sign PDF Online is built for private, in-browser work. Upload-based PDF sites often store temporary copies on someone else’s disk; SortMyFile’s default is the opposite — processing stays on your device for this utility. Signatures never upload to SortMyFile. If a step needs a one-time language pack or WASM library from a CDN, that is asset delivery — not your document contents being sent to SortMyFile for server-side processing. Close the tab when you are done if you want memory cleared.
Draw or type a signature and stamp it on a PDF (single-party, not e-sign). Before you run Sign PDF Online, keep an original copy of every source file. Spot-check the download on the same device you will use for the portal or email. Large scans and phone photos are limited by browser RAM — if a run stalls, shrink the input first or split the job. SortMyFile browser tools stay free forever with no daily caps.
Draw or type a signature and stamp it on a PDF (single-party, not e-sign) — A portal rejects the file shape and you must fix it without desktop Acrobat. You inherited a messy packet from a scanner or email thread and need a clean file before a form upload. People reach for Sign PDF Online when a form, HR desk, or messaging app rejects the current file shape, size, or format and installing desktop software is overkill. Pair it with signature-generator, protect-pdf, fill-pdf-form when you need a short pipeline (for example compress then OCR, or HEIC to JPG then JPG to PDF). Results are not a substitute for official portal rules — always re-read the receiving site’s instructions before a deadline.
Sign PDF Online trades convenience for honesty about browser limits. Extremely large files, corrupted inputs, or DRM-protected media can fail. Password-protected PDFs need a password you already know — SortMyFile does not crack encryption. Free use does not require an account; Pro (when checkout ships) is planned to raise limits and reduce ads. Until then, the free tier is enough for most one-off private jobs.
Common questions
No — it is a self-applied image stamp, not DocuSign-class e-sign.
Use Signature Generator.
Aim under ~50–100 MB depending on device RAM. Very large scans may stall older phones. (Sign PDF Online.)
Yes — download a new file and keep the source on disk as backup.
After the app shell and libraries are cached by your browser, many PDF tools keep working offline for that session.
More private utilities that pair well with this page.
PDF, image, Indian paperwork, accessibility, and generators — all free in your browser.
More PDF tools