Draw or type your signature and add it to any PDF page — instant, private, no upload.
pdf-lib places your signature onto the PDF entirely in your browser.
Drop the PDF you want to sign.
Draw with your mouse or finger, or type your name and choose a font style.
Select which page and which corner to place the signature.
Click Add Signature and save the signed PDF.
Sign any PDF in seconds without printing, scanning, or installing software.
Use your mouse or finger on a touchscreen to draw naturally.
Type your name and choose a font style for a clean typed signature.
Bottom right, bottom left, centre, or top right — your choice.
Place your signature on any page of the PDF.
Everything runs in your browser — nothing is uploaded.
No sign-up, no limits.