Runs in your browser. Nothing uploads.
Add a watermark
Stamp DRAFT, CONFIDENTIAL or any text diagonally across every page of a PDF, with control over how heavy the mark sits.
Drop the PDF you want to markYou can also paste a file with ⌘V / Ctrl+V
Any text
A status, a client name, a date. Whatever the document needs.
Adjustable weight
Keep it light enough to read through, or heavy enough to discourage reuse.
Applied to all pages
One pass covers the whole document, sized to each page.
Questions
Can the watermark be removed?
It is drawn into the page content, so it will not lift out with a click. Anyone determined enough can still edit a PDF — treat a watermark as a signal, not as security.
Can I use an image instead of text?
Not yet. Logo watermarks are on the list.
Does it cover my text?
It sits on top at reduced strength. Lower the strength slider if it competes with the content.
Other tools
Merge PDFCombine files into one, in the order you choose.Organize pagesRotate, delete, reorder and extract pages visually.Compress PDFRebuild image-heavy PDFs at a smaller size.Number pagesAdd page numbers along the bottom.PDF to JPGSave every page as an image.Images to PDFTurn photos and scans into one document.