What happens to the original?
A separate PDF is created without overwriting your original. Signature images are added without rasterizing the original pages. Saving may change the file structure, so check documents with special features carefully.
Add a Signature to PDF
Place a drawn signature or signature image on a PDF and save a copy.
- 1 Choose file
- 2 Edit and adjust
- 3 Download
or drag and drop a file here.
This tool places a signature image on a PDF. It does not provide certificate-based digital signatures or identity verification. PDFs with signature fields or password protection are not supported.
Place on PDF
The signature inside the dashed border is a preview. Adjust its position, then click Add signature to this page.
Position and size are relative to the current page. Placement is automatically adjusted to keep the signature inside the page.
Prepare signature
A transparent PNG is recommended. JPG and images with a white background include that background. Use a signature image of at most 2 million pixels.
No signature is ready yet.
Added signatures
Added signatures: 0
Only added signatures are saved. Reopen the saved PDF to check placement and the original content.
Signature added
Check the added signatures and save the PDF.
The dashed preview is not saved. Only signatures added to a page are saved.
How to use
- 01
Choose PDF
Choose the PDF you want to sign.
- 02
Prepare and place signature
Draw a signature or choose an image, adjust its position and size, and add it to a page.
- 03
Save result
Check the pages you signed and save the PDF.
Frequently asked questions
Can I use password-protected or digitally signed PDFs?
Password-protected PDFs, PDFs with signature fields, and XFA forms are not supported. This tool does not preserve the validity of existing digital signatures. Keep the original and check results for complex forms or special document features.
What if a signature is in the wrong position?
Undo the last signature, adjust its position, and add it again. Rotated pages use the orientation shown on screen. Signatures cannot be added to pages that are too large or complex to preview.
Can I request or authenticate someone else's signature?
This tool places a signature image you provide. It does not send signature requests or provide identity checks, certificates, or audit trails.
Important information
Your input and files are processed in your browser. They are not sent to a processing server or written to browser storage. Keep your original file, then reopen the saved result to check its content and placement. Refreshing or closing the page clears your work.
This tool places signature images. It does not provide certificate-based digital signatures or identity verification.
Tested example
Input and settings
A synthetic four-page PDF with rotations 0°, 90°, 180° and 270°
Observed result
Signature placement, rotation, CropBox and form-value preservation checked
What to check
This visual placement test is not certificate-based digital signing or identity verification.
Examples use synthetic, non-personal test material. Results apply to the inputs and settings shown; different files and devices can produce different sizes, timing and appearance.