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Add a text watermark to PDF

Place a text watermark on PDF pages with control over size, opacity, rotation and position.

  1. 1Add files
  2. 2Options
  3. 3Convert
  4. 4Save
No installation · Processed in your browser

Preparing the converter…

Add your PDF filesDrop files here or choose them from your device.Drop here to add your files. Choose PDF files PDFPDFNo fixed byte cap · browser memory and format limits apply
Choose a file to check its format and size.

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Supported formats and settings

Input formats
PDF
Output formats
PDF
Per-file limit
Current device memory
Total selected-file limit
Estimated by file count and format
Number of selectable files
1–1

Recommended input total: 16 MiB on mobile / 64 MiB on desktop. Low memory can reduce the effective limit.

Your files are not uploaded to a conversion server. A new result is created in your browser.

How to use this tool

  1. Choose files in PDF format. Maximum files per batch: 1.
  2. Review Watermark text, Font size, Opacity (%), then start processing.
  3. Download the PDF result and check its content and quality.

What this tool does

  • Place a text watermark on PDF pages with control over size, opacity, rotation and position.
  • Read PDF input and save the PDF result as a new file.
  • Available settings: Watermark text, Font size, Opacity (%), Rotation (degrees), Position.

Limitations

  • A watermark is not copy protection. Text must be supported by the embedded font.

Frequently asked questions

Add a text watermark to PDF — What should I check before using this tool?

A watermark is not copy protection. Text must be supported by the embedded font.

Which files can I choose?

Choose files in PDF format. Maximum files per batch: 1.

How can I adjust the result?

Watermark text, Font size, Opacity (%), Rotation (degrees), Position.

Understand the formats

PDF

PDF packages pages for reading and sharing with a defined page size. A page can contain text, images, drawings or form fields.

Combine PDFs, reorder pages or turn photographs into a page-based document. Check page order and size in a PDF reader after saving.

A scanned PDF does not necessarily contain selectable text. Coverton does not advertise OCR or PDF-to-Word conversion on the free web. Editing a signed PDF may invalidate its signature.

When is this useful?

Label a review PDF as a draft. A watermark does not restrict access or prevent copying.

Input and result example

PDF + DRAFT text → stamped PDF copy

Examples illustrate the workflow; actual size, support and recognition depend on the source and settings.

Related guides

File conversion and error basics