chaaam.
CHAAAM FREE OFFICE TOOLS

Add your signature to a PDF

Draw a signature, choose its page and position, and download a PDF with the visible mark.

✓ Free to use✓ No CHAAAM login✓ Files stay in your browser

Add your signature to a PDF

Add your files, adjust the options, then download the result. Files are processed on your device.

Drag files here or use the file picker

PDF tools accept PDF. Image tools accept JPG, PNG and WebP.

    PDF tools

    Merge PDFCombine documents Extract PDFSelect pages Visual Rotate PDFPreview and rotate View PDFRead in browser Visual Sign PDFDrag signature Bulk Sign PDFSign multiple PDFs Delete PDF PagesRemove pages visually Split PDFOne page per file PDF to PNGExport page pictures Add Text to PDFOverlay notes Watermark PDFDraft and labels Page NumbersNumber pages Images to PDFPhotos to pages

    Image and photo tools

    Merge ImagesJoin pictures Resize ImageChange dimensions Compress ImageReduce file size Crop ImageCenter crop Convert ImagePNG, JPG, WebP Rotate ImageRotate and flip Photo Size & KBExact px and KB

    Everyday office helpers

    Word CounterWords and reading time Text CaseChange capitalization CSV to JSONConvert spreadsheets

    How to use add your signature to a pdf

    Draw your own signature in the white canvas with a mouse or finger, then choose its page, size and location. The tool places the mark as a visible image onto the PDF.

    1. Choose your PDF and draw your own signature.
    2. Pick the page, position and size.
    3. Add the mark and download the updated PDF.

    Important: Only sign documents you are authorized to sign. This creates a visible signature image, not cryptographic digital signing, signer verification, audit trails or identity verification. Legal acceptance varies by recipient and jurisdiction.

    Privacy: CHAAAM processes your files locally in your browser. No document contents are uploaded to CHAAAM. Third-party library notices are available in Third-party licenses.

    Need AI to write a report or summarize information? Search CHAAAM for AI tools →