Free online tool by DocsBolt
Add Watermark to PDF
Stamp PDFs with text like `Draft`, `Confidential`, or a brand label before sharing them.
Add watermark to PDF free online with DocsBolt. Stamp text like Draft, Confidential, or your brand on every page with adjustable opacity — no login needed.
What this tool includes
Output
Watermarked PDF
Accepts: .pdf
Add Watermark
Upload your file, choose any optional settings, and download the result.
Workflow
Upload one PDF
Choose the source file.
Enter watermark text
Set the label you want on the document.
Download the new PDF
Get the watermarked version instantly.
FAQ
Can I add `Confidential` or `Draft` labels?
Yes. This tool applies text watermarks to every page.
Can I control opacity?
Yes. Use the optional opacity field to make the watermark lighter or stronger.
Is this Add Watermark tool free to use?
Yes. Add Watermark on DocsBolt is completely free with no conversion limits, no signup, no email, and no watermark on the Watermarked PDF you download. There is no paid tier gating the output quality.
Which file types can I upload to Add Watermark?
This tool accepts .pdf. Upload one file per conversion; run the tool again for additional files. The result is delivered as Watermarked PDF.
Do I need to install any software?
No. Add Watermark runs entirely in your browser, so it works the same on Windows, macOS, Linux, Android, and iOS. There is nothing to download and no extension to install.
Are my files safe and private?
Files are transferred over an encrypted HTTPS connection, used only to produce your Watermarked PDF, and deleted automatically once processing finishes. DocsBolt does not read, share, or retain the contents of your uploads.
Is there a file size limit for Add Watermark?
Typical documents and images process without issue. Very large files may take longer to upload depending on your connection, but there is no artificial size cap applied to free users.
Add Watermark to PDF: how it works and when to use it
Add watermark to PDF free online with DocsBolt. Stamp text like Draft, Confidential, or your brand on every page with adjustable opacity — no login needed.
Converting .pdf to Watermarked PDF by hand usually means opening desktop software, digging through an export dialog, and hoping the settings carry over. This tool removes that step: drop the file in, and DocsBolt returns a ready Watermarked PDF without changing the layout, fonts, or quality of the original.
Because it runs in the browser, Add Watermark is equally usable on a work laptop with locked-down software policies, a shared library computer, or a phone. Nothing is installed and no account is created, so there is no barrier between opening the page and getting the file you need.
What you get with Add Watermark
- Adds text watermark to every page
- Adjustable opacity
- Useful for draft and confidential files
Add Watermark at a glance
- Input formats
- Output format
- Watermarked PDF
- Batch upload
- One file at a time
- Price
- Free, unlimited conversions
- Account required
- No — no signup, no email
- Watermark
- None on any output
- Works on
- Windows, macOS, Linux, Android, iOS — in-browser
- File retention
- Files are deleted automatically after processing
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