PDF Watermark
Files never leave your device
Drop a PDF file here
or click to browse. Add text or image watermarks locally.
Watermark options
  • Add text watermarks like DRAFT, CONFIDENTIAL, or SAMPLE.
  • Add PNG or JPEG image watermarks such as a logo or stamp.
  • Control opacity, rotation, position, and repeated tiling.
  • Everything runs in your browser. Your PDF is never uploaded.

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PDF Watermark - Add Text or Image Watermarks

Add transparent text, logo, stamp, or tiled watermarks to PDF pages in your browser with no upload.

Updated May 14, 2026
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Features

Add text watermarks like CONFIDENTIAL, DRAFT, SAMPLE, COPY, or PAID.
Add image watermarks from PNG or JPEG logos, stamps, signatures, or badges.
Control watermark opacity so marks can be subtle or clearly visible.
Rotate text or image watermarks for diagonal document stamp layouts.
Place watermarks in the center, corners, edges, or repeated tiled pattern.
Apply the same watermark automatically to every page in the PDF.
Preview the first page with the approximate watermark style before downloading.
Create a new watermarked PDF while leaving the original file untouched.
Process documents locally in the browser with no upload or server queue.
Use the tool with no account, no email, and no extra branding watermark.

About this tool

This free PDF Watermark tool adds text or image watermarks to PDF pages directly in your browser. It is built for searches like add watermark to PDF, watermark PDF online, add CONFIDENTIAL watermark to PDF, and add logo watermark to PDF without upload. Upload a PDF, choose a text label or PNG/JPEG image, set opacity and rotation, choose a page position, and download a new watermarked PDF — all without sending your document to a server. The tool runs fully in your browser using pdf-lib, so your files are processed locally and no data is uploaded.

The watermark engine supports both Text mode and Image mode. In Text mode, type any label you need — CONFIDENTIAL, DRAFT, SAMPLE, PAID, COPY, VOID, or a custom message — then choose font size, color, opacity, and rotation. A diagonal 45-degree rotation at 20–30% opacity recreates the classic document stamp look. In Image mode, upload a PNG or JPEG file such as a company logo, approval stamp, or review badge, then set its width as a percentage of the page, position it at the center or any corner, and tune the opacity so the branding is visible without covering important content. The Tile option in both modes repeats the watermark across each page, which is useful for SAMPLE or copyright labels that should remain visible even if a page is cropped.

The watermark is drawn on top of each page as additional PDF vector or image content. It appears over the existing content at the opacity level you choose. The original PDF on your device is never modified — the tool creates a new watermarked copy and downloads it with a separate filename. For multi-step PDF workflows, reorder or clean up pages first with PDF Page Organizer, add your watermark here, then apply PDF Password Protector if the document should also require a password before opening. If the final PDF is too large after watermarking, PDF Compressor can reduce scanned or image-heavy files.

How to Use

  1. 1
    Upload your PDFDrop your PDF into the upload area or click to browse. The tool reads the PDF locally and shows a first-page preview. The file is not uploaded while you configure the watermark.
  2. 2
    Choose text or image modeUse Text mode for labels such as CONFIDENTIAL, DRAFT, SAMPLE, PAID, or internal review. Use Image mode for a PNG or JPEG logo, stamp, signature, or badge. PNG is best when the watermark image has transparency.
  3. 3
    Adjust style and placementSet opacity, rotation, and position. Use low opacity for background-style marks, center placement for diagonal stamps, corner placement for logos, or Tile mode when you want repeated copyright or sample marks across every page.
  4. 4
    Download the watermarked PDFClick Add Watermark to write the watermark onto every page and download a new file. For page edits before watermarking, use PDF Page Organizer. To combine watermarked PDFs afterward, use PDF Merger.

Common Use Cases

Add a confidential PDF watermark
Use a large diagonal CONFIDENTIAL watermark when sharing contracts, financial documents, strategy decks, or internal reports. Lower the opacity so the document remains readable while the status of the file is visible on every page.
Mark draft PDF documents
Draft proposals, design proofs, policy documents, and client previews often need a clear DRAFT label before final approval. Add a repeated or centered text watermark so reviewers understand that the PDF is not the final version.
Add a logo watermark to PDF pages
Use Image mode to place a company logo, agency mark, or brand badge on each page. Corner placement works well for subtle branding, while low-opacity center placement works better for proofing or sample documents.
Protect sample and preview PDFs
Watermarks do not provide cryptographic protection, but they discourage misuse and make preview copies easier to identify. Tile a SAMPLE or PREVIEW watermark across pages before sending mockups, templates, worksheets, or paid digital products.
Stamp invoices, forms, and approvals
Add PAID, APPROVED, REVIEWED, or VOID labels to accounting PDFs, approval packets, or form exports. A visible stamp can make document status obvious without opening a heavier desktop PDF editor.
Use in a PDF editing workflow
Organize pages with PDF Page Organizer, add the watermark here, then use PDF Compressor if the final file is too large. The workflow stays browser-based and keeps documents local.

Frequently Asked Questions

Open the PDF Watermark tool, upload your PDF, choose Text or Image mode, adjust opacity, rotation, and placement, then click Add Watermark. The PDF is processed locally in your browser with pdf-lib. Your document is read into browser memory and the watermarked PDF is downloaded back to your device without being uploaded to a server.

Use Text mode and enter CONFIDENTIAL, DRAFT, SAMPLE, COPY, or any label you need. Set a large font size, choose a color, lower the opacity, and use a diagonal rotation for a traditional document stamp. The tool applies the text watermark to every page in the PDF, so you do not need to edit pages one by one.

Yes. Switch to Image mode and choose a PNG or JPEG watermark image, such as a company logo, approval stamp, signature mark, or sample badge. You can control the image width as a percentage of the page, set opacity, rotate it, place it in a corner or center, or tile it across the page.

Yes. Use the opacity slider to make text or image watermarks subtle. A low opacity works well for background watermarks that should discourage copying without hiding the document content. A higher opacity works better for visible stamps like APPROVED or PAID. Always review the downloaded PDF to confirm the watermark is readable without covering important text.

Yes. Enable the Tile option to repeat the watermark across each page. Tiled watermarks are useful for SAMPLE, CONFIDENTIAL, copyright labels, or review copies because the mark remains visible even if someone crops part of the page. Tiling works for both text watermarks and image watermarks.

No. The original PDF on your device is not modified. The tool creates a new PDF file with the watermark applied and downloads it with a new filename. You can experiment with opacity, rotation, and position, download a copy, and keep or discard it without changing the source document.

Yes. The watermark is drawn onto each page as additional PDF content. It appears over the existing page content using the opacity value you choose. Use a low opacity for background-style marks, especially on documents with dense text, and use corner placement for logos or stamps that should not cover the main body.

Image watermark mode supports PNG and JPEG files because those formats can be embedded reliably with pdf-lib. PNG is best for logos, stamps, and images with transparent backgrounds. JPEG is useful for photo-style marks or scanned signatures. SVG and WebP watermarks are not embedded directly in this version.