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." Drawing, uploading or typing your name here is the whole process, with nothing to install.
By ShinobiTools Team · Last updated: August 2026
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.
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 slanted Times Italic font instead, Latin letters only. Whichever you pick, drag it onto the page and resize the box to fit. As a document signer it handles PDF files only: it is a signing tool, not a full PDF editor, so you can't change the text of a PDF file here.
The pad opens right on the page, so you sign online without installing anything, and you can sign PDF online free of charge with no card and no trial. It works the same on a phone as on a desktop, so you can sign documents online free from wherever you are, and the download carries no watermark. Sites that advertise PDF sign online free often ask for an e-mail address first; this one doesn't. Sign document online free, with no account, and add a digital sign free of charge that looks like your own hand. Place an online signature PDF readers display the same everywhere. Filling in a line that reads "sign on document here"? Drag your signature into that exact spot.
To add a signature to a PDF, draw, upload or type it; all three are free and need no account. Need the form fields filled in too? Fill PDF Form handles the text boxes and checkboxes, and you can sign here once they're done. Some tools, iLovePDF among them, sell a PDF sign and fill combination as one paid feature; here it is two free steps. You can add signature to PDF forms, letters or contracts the same way, and if a form asks you to add sign and date details, sign here and type the date as free text with Annotate PDF.
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. That is how to sign a PDF document with no software, and the signature is flattened into the page, so it survives printing, emailing and re-opening in any reader.
Yes. Draw with your mouse or finger, upload a PNG or JPG of an existing signature, or type your name, which is set in a slanted Times Italic font. A transparent PNG looks best, since a white background shows as a white box. You only need one for a given document, and all three are free: draw a free signature PDF readers will show the same way on every device.
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. If you are asking how to digitally sign a PDF with a certificate, use a PAdES/eIDAS-compliant service. For everyday paperwork a placed signature is usually enough, and PDF signing here is exactly that.
Draw, upload or type your signature, drag it onto the page and download the signed document; that is how to electronically sign a PDF for free, with no account and no daily cap. You can sign PDF documents here as often as you like and sign PDFs free of charge, whether that is one page or a whole contract. In short, how to sign a PDF for free and how to sign a PDF document for free have the same answer: this page, with no watermark on the download.
Yes. Drag it onto as many pages and as many spots as you need before pressing Sign, and resize each box to fit. To sign PDF document pages that each need initials, place it once per page.
25 pages and 250 MB per file on the free tier; a €5 pass raises that to 200 pages and 500 MB. There is no account, no watermark and no daily cap, so you can sign a document for free as often as you need.
Yes. Draw with your finger, upload a photo of your signature, or type your name; it runs in any browser with no app to install, so you can sign a PDF online on a phone exactly as on a desktop. Each PDF signature online is placed on our server and handed straight back. Adding a free PDF signature online takes a few seconds, and placing a PDF signature online free of charge is the same on Android and iPhone.
Yes, that is the point of this tool. Upload the PDF, place your signature and download the signed file, with no printing or scanning involved. Sign PDF for free, then send it on.
It means placing your signature image on one or more pages of the file. Here you draw, upload or type it, drag it into position, and download the result with the signature baked into the page as part of the PDF image.
Fill the fields first, then drag your signature onto the page; that is how to sign fillable PDF documents properly. This page handles the signature and Fill PDF Form handles the text boxes and checkboxes, so you can fill and sign PDF free of charge in two steps, in whichever order suits the form.
PDF only. To sign DOC or DOCX files, turn them into a PDF with Word to PDF first, then sign the PDF here. This page only signs; to combine files into one document, use Merge PDF.
No. The PDF signature free tier is the only tier: this free Sign PDF tool has all three ways to sign, an online signature without a watermark, and no account. The ads on the page keep every PDF sign free of charge, and a free PDF sign request needs no sign-up.
No. Your file and signature are processed in memory and handed back in the response; nothing is written to our disk or kept afterwards.
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