How to Add an Image as a Signature in Adobe Fill & Sign
Question details
The user wants to upload an image to use as a signature in Adobe Fill & Sign and synchronize it for use across multiple devices including a computer, tablet, and phone.

- Product
- Adobe Fill & Sign
- Device & OS
- not provided
- Scenario
- Adding a custom image as a digital signature to PDF documents and accessing it on various platforms.
- Observed behavior
- The user is looking for the correct procedure to upload a signature image and enable cross-device synchronization.
Ensure that your signature image is clear, cropped to the edges of the signature, and saved in a standard format like PNG or JPG on your current device. Also, make sure you have your Adobe account credentials ready to enable cross-device syncing.
Add and Sync an Image Signature in Adobe Fill & Sign
Use this method to upload your saved signature image into Adobe Acrobat or the Fill & Sign app, and synchronize it to your Adobe account for cross-device access.
By logging into the same Adobe account across your PC, tablet, and smartphone, any signature you upload in the Fill & Sign tool will automatically be available on all supported platforms.
Launch Adobe Acrobat on your computer or open the Adobe Fill & Sign app on your mobile device or tablet.
Click or tap on the 'Fill & Sign' option, then select 'Add Signature' or click the pen icon.
Choose the 'Image' option from the signature creation menu. Browse your device's files to select your saved signature image.
Adjust the image as necessary, check the box that says 'Save signature' (if available), and click 'Apply' or 'Save'.
Ensure you are signed in to your Adobe account. When you log in with the same account on a different device, your saved image signature will be available in the Fill & Sign menu.

Add and Sync PDF Signatures Easily with WPS Office
WPS Office provides a highly capable PDF editor that allows you to effortlessly insert image signatures, draw your own, or type them out. With built-in WPS Cloud integration, your signatures and documents stay perfectly synced across your PC, tablet, and smartphone without any extra hassle.
- 1. Open Your PDF: Launch WPS Office and open the PDF document you need to sign.
- 2. Access the Sign Tool: Navigate to the 'Fill & Sign' or 'Insert' tab and click on the 'Sign' button.
- 3. Create an Image Signature: Select 'Create Signature', switch to the 'Image' tab, and browse your device to upload your saved signature file.
- 4. Place and Save: Click 'OK' to place the signature exactly where you need it on the page, then save the document. Ensure you are logged into your WPS account to sync the signature across your other devices.

Frequently Asked Questions
Why does my signature image look blurry when I add it to a PDF?
If the original image file has a low resolution, it will lose quality and appear blurry when placed and resized in a document. To fix this, scan or photograph your signature in good lighting and save it as a high-resolution file before uploading.
Does Adobe Fill & Sign support transparent backgrounds for image signatures?
Yes, Adobe Fill & Sign fully supports transparent backgrounds. It is highly recommended to upload a PNG file with transparency so that your signature does not place a white box over lines or text on the document.
Can I sync my saved signature without an Adobe account?
No, synchronization relies on Adobe Document Cloud. You must create and sign in to a free or premium Adobe account on all your devices (computer, tablet, phone) to access your saved image signatures across them.
How do I delete or replace an old signature in Adobe Acrobat?
Open the 'Fill & Sign' tool and click the 'Sign' icon (shaped like a pen) at the top. You will see your currently saved signature. Click the minus (-) or trash can icon next to it to remove it, which will then allow you to add a new signature.




