A free tool from SignThis
Sign a PDF
Open a PDF, add your signature, a date or text where they belong, and download the result. You don’t need an account or an email address.
Your file stays on your device. It is opened in your browser and never uploaded.
Drop a PDF here
or choose one from your device. Up to 30 MB and 100 pages.
Your file stays on this device and is never uploaded.
A mark on your PDF, or a sealed signature
This tool draws a visible signature, date or text onto your own PDF. The result is a picture on the page: it carries no proof of who signed or when, and the file can be changed afterwards without that showing.
A document sent through SignThis goes to each signer by a personal link, and the finished PDF is sealed with a digital signature and a trusted timestamp. Anyone can check a sealed copy on the verify page.
Need the signature image on its own? Make one with the free signature generator.
About signing a PDF here
Is my PDF uploaded?
No. Your browser reads the file into this page’s memory, adds your marks there and saves a new file to your device. The PDF, your signature and what you type are not sent to SignThis or anyone else, and nothing is kept once you close or reload the page.
Do I need an account?
No. There is no sign-up, no email address to give and no payment. The download has no watermark.
What can I add?
A signature you type or draw, today’s date in the format you choose, and a line of text such as your printed name. Put each one on any page, drag it into place, resize it, or remove it. You can add as many as the document needs.
Does it work on a phone?
Yes. Draw your signature with a finger, drag marks into place, and use the zoom button for small signature lines.
Why won’t my PDF open?
A PDF that needs a password, or that is protected against changes, can’t be marked here. Open it in your usual PDF app and save or print a copy without the protection, then choose that copy. The tool also stops at 30 MB and 100 pages, because everything happens in your browser’s memory.
What happens to the rest of my document?
Its pages, text and images are kept, and your marks are drawn on top as part of the page. If the PDF already carried a digital signature, that signature won’t validate on the new copy, because the file has changed.
Is this the same as signing through SignThis?
No. Here you mark up a file yourself and nothing is recorded. The document signing service sends a PDF to the people who need to sign, records each step in an audit trail, and seals the completed copy so later changes show.