This places an image of your signature — it is not a certificate-based digital signature.Draw, upload, or type your name and it gets placed on the page exactly where you put it. That is not the same thing as a PAdES/eIDAS digital signature: there is no certificate, no cryptographic proof of who signed or when, and no tamper-evidence. It is fine for everyday paperwork; for a contract that specifically requires a certified digital signature, use a PAdES/eIDAS-compliant service instead. Your file is only ever handled in memory here, never written to our disk.
By ShinobiTools Team · Last updated: August 2026
Draw your signature with the mouse or finger, upload a photo of your pen-and-paper one, or just type your name — then drag it onto the page, on as many spots as you need. Nothing here is a certificate-based e-signature, it is an image on the page, but for most everyday forms and letters that is exactly what people mean by "sign this PDF."
A certificate-based digital signature (the kind PAdES and eIDAS define) ties a signature to a verified identity with cryptography: anyone can check who signed, when, and whether the document changed afterward. That requires a certificate and a signing authority — this tool does not have either, and it is honest about that rather than implying otherwise.
What it does instead is exactly what it looks like: it places an image — drawn, uploaded, or typed — onto the page, the same as printing a document, signing it with a pen, and scanning it back in. For internal forms, letters, and anything where a visible signature is the point, that is enough. For a contract, deed, or filing that specifically requires a certified e-signature, this is not the right tool.
Draw it with the mouse or your finger on a small pad — the most direct match for an actual signature. Upload a photo or scan of your usual pen-and-paper signature as a PNG or JPG; a transparent background works best but is not required. Type your name and it is set in a script-style font instead. Whichever you pick, drag it onto the page and resize the box to fit.
Your PDF and your signature are processed entirely in memory on our own machine and handed back in the response — neither is written to our disk for this tool, and nothing is kept afterwards.
Still need to fill in the form's own text boxes and checkboxes, not just sign it? Fill PDF Form lists every field so you can type your answers before adding a signature. Already filled in a form and want the answers locked before you sign it? Flatten PDF bakes the field values into the page first, so they can't be edited back out. Keeping the signed copy for years? Convert to PDF/A archives it in the ISO format built to stay readable. Got a copy back with someone else's signature added and want to be sure nothing else in the document changed? Compare PDF checks the two versions word by word and page by page. Want to leave a note next to your signature explaining a change? Annotate PDF adds a sticky note or free text alongside it. Need a real text box or checkbox someone else can type into, not a placed image? Create PDF Form adds interactive fields instead.
Upload it, choose how you want to sign — draw with your mouse, upload an image of your signature, or type your name — then drag it onto the page. Press Sign and download the result.
Yes. Draw with your mouse or finger, upload a PNG or JPG of an existing signature, or type your name in a script-style font. Pick whichever is easiest — you only need one for a given document.
No, and we want to be upfront about that: this places an image of your signature onto the page. It is not a certificate-based digital signature under PAdES or eIDAS, and it does not carry the cryptographic proof of identity or tamper-evidence those standards provide. For everyday paperwork a placed signature is usually enough; for contracts that specifically require a certified digital signature, use a PAdES/eIDAS-compliant service instead.
Yes. Drag it onto as many pages and as many spots as you need before pressing Sign.
25 pages per file. There is no account, no watermark and no daily cap.
No. Your file and signature are processed in memory and handed back in the response — nothing is written to our disk or kept afterwards.