Does Watermark PDF upload my file?

No. Conversion runs in your browser with WebAssembly and the canvas. imissfiles servers never receive the document. Closing the tab discards the working copy.

Is Watermark PDF free?

Yes. Watermark PDF is free. Display ads around the workbench pay for hosting. Ads are not given your file.

How do I add a text watermark to a pdf without an account?

Drop the file on this page, convert, and download. No sign-in. No email. Nothing is stored between visits.

Will the result look identical?

Image and page conversions keep the pixels you dropped. PDF compression redraws pages as JPEGs so size drops — pick a higher quality if you need sharper type.

What about large files?

Your device memory is the limit. Very large PDFs (hundreds of pages) may be slow. Nothing is queued on a server.

imissfiles/PDF tools

Add a text watermark to a PDF

Stamp CONFIDENTIAL, DRAFT, or your name across pages.

Watermark PDFFree · never uploaded

Drop files to convert

One file. They stay in this tab — nothing is uploaded.

Watermark text

How to add a text watermark to a pdf

01
Drop the file
Read by this page only. Nothing is posted to imissfiles.
02
Convert here
A faint diagonal text watermark is drawn on every page. You choose the words. The file stays on your device.
03
Download
Take the result. Close the tab and the working copy is gone.

Watermark PDF FAQ

Does Watermark PDF upload my file?: No. Conversion runs in your browser with WebAssembly and the canvas. imissfiles servers never receive the document. Closing the tab discards the working copy.
Is Watermark PDF free?: Yes. Watermark PDF is free. Display ads around the workbench pay for hosting. Ads are not given your file.
How do I add a text watermark to a pdf without an account?: Drop the file on this page, convert, and download. No sign-in. No email. Nothing is stored between visits.
Will the result look identical?: Image and page conversions keep the pixels you dropped. PDF compression redraws pages as JPEGs so size drops — pick a higher quality if you need sharper type.
What about large files?: Your device memory is the limit. Very large PDFs (hundreds of pages) may be slow. Nothing is queued on a server.

Related converters

Merge PDFCombine PDFs in any order. Entirely in your browser.Split PDFTurn one PDF into a file per page, or keep ranges later.Compress PDFShrink a PDF for email without sending it anywhere.PDF to WordExtract PDF text into an editable .docx file.Word to PDFTurn a .docx into a clean, shareable PDF.PDF to JPGRender every page as a JPEG image.