PDF Watermark Removal
View by type and check the items to process.
Local processing · No File Upload Required
Files are processed in this browser without automatic uploads. Loading processing components for the first time may require an internet connection.
Upload PDF to remove watermark
PDF watermark candidates and removal boundaries
Inspect candidate watermarks in repeated text, images and drawing content, then review and select the items to remove.
Removes only safely located candidates you confirm. Watermarks merged with text or background images may not be removable on their own.
Capabilities explained
Candidates need human review
Repeated headers, footers or images may also be detected as candidates. Review example pages and details to avoid deleting body content or necessary markings.
Original and processed previews
After generating a result, switch between original and processed previews. Check body text, images and required markings page by page before downloading and using it.
Usage Steps
Upload PDF
After uploading, you'll automatically enter the workbench: preview the PDF on the left, and view detection results on the right to prepare for removal.
Confirm items to process
Detected watermarks and duplicates will be listed on the right.
Generate cleaned results
Generate the PDF with watermarks removed, or directly upload a new file on the right to continue processing without returning to the top.
Frequently Asked Questions
Why can't some watermarks be completely removed yet?
This usually means the matches cannot be reliably mapped to specific annotation objects or content stream boundaries, and direct deletion risks damaging the main content.
What cases does content stream modification currently support?
Currently prioritizes removal of high-confidence text display instructions and image XObject drawing references, without forcibly rewriting all path drawing content.
Why can removing a candidate affect body content?
Candidate content may share resources or rendering structures with the main text. Please review against the original preview, cancel the relevant candidate items, and regenerate. If necessary, retain the original file and halt the removal operation.