PDF -> stamped PDF · Local tool
Watermark PDF
Stamp text like DRAFT or CONFIDENTIAL across the pages of a PDF.
Last updated
01 / Your device
the file stays here
02 / Browser memory
the work runs locally
03 / Back to you
saved on this device
When you would use this
Situations, not settings.
- A draft that should not be mistaken for final
- DRAFT across every page survives printing and forwarding in a way a note in the email does not.
- Marking a document as confidential
- Visible on every page, including the one someone photographs on a desk.
- A copy sent for review
- Stamp the reviewer's name or the date so you can tell which copy came back.
How it works / no cloud
A conversion engine, not an upload form.
filetity opens your PDF in browser memory and draws your text on top of each page you picked. The page underneath is not rebuilt: text stays text, images keep their bytes, and every page keeps its size and its rotation. Position and size are worked out per page, so a landscape page in the middle of an A4 document gets a stamp that fits it. There is no account, queue, or remote server in the path.
- Offline ready
- Installable app
- No file limit queue
Straight answers
No accordion. Nothing hidden.
- Is it free?
- Yes, with no page limit. The only thing added to the file is the text you typed.
- Does it need an account?
- No. There is no account system.
- Is my file processed on my device?
- Yes. The file is read by your browser and never uploaded. There is no server to send it to.
- What formats are supported?
- PDF in, PDF out. One file at a time.
- What are the limits?
- No page limit. One line of text, up to 80 characters. Text only. It cannot stamp an image or a logo.
- Does it work on mobile?
- Yes, on any modern mobile browser. Large files are limited by the memory the phone gives the browser.
- Does it work offline?
- Yes, after you have used it once. Your browser keeps what the tool needs, so it then works with no network connection.
- Does a watermark stop people copying my PDF?
- No. A watermark is drawn content, the same as any other text on the page, and anyone with the right tool can take it off. It marks a document, it does not protect one. If you need a file nobody can open without a password, use Protect PDF instead.
- Can this remove a watermark someone else added?
- No. It only adds one. A watermark that was drawn into a page is part of that page's content, and pulling it out means damaging whatever sits under it.
- Will the stamp land correctly on landscape or A3 pages?
- Yes. Both the position and the size are worked out from each page's own dimensions and rotation, so a document mixing A4, A3 and landscape pages gets a stamp that fits every one of them.
- Can I watermark only some of the pages?
- Yes. Tick the pages you want and the rest are left untouched. With nothing ticked, every page is stamped.
- How faint is the stamp, and can I change it?
- It starts at 20 percent opacity in grey, the usual look for a draft mark, and the slider goes up to 80 percent. Black, red and blue are the other colours, and Small, Medium and Large set the text height at 5, 8 or 12 percent of the page's shorter side.
Keep working locally
7 available · more coming
- Sign PDFAdd your signature to a PDF, without uploading the document.
- Unlock PDF and password protect PDFRemove PDF password protection when you know the password, or add AES-256 encryption.
- Add Page Numbers to PDFNumber the pages of a PDF, and leave the title page alone if it has one.
- Redact PDFBlack out parts of a PDF so the text underneath is actually removed.
- PDF to WordTurn a PDF into an editable Word document, text and page breaks intact.
- PDF to Base64Turn a PDF into base64 text for an API or a JSON field.