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Add Watermark to PDF Online Free — Text & Image Watermarks

Add a watermark to your PDF online free using our fast, flexible PDF watermark tool. Stamp text or image watermarks on every page — customize font, size, color, opacity, rotation, and position. Protect confidential documents, brand your reports with a logo, or mark drafts as CONFIDENTIAL or DRAFT instantly. No Adobe Acrobat, no software installation, no signup, no watermarks on your watermarks.

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Support for PDF, Word, Excel, PowerPoint, and Images. Secure processing up to 100MB.

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What is a PDF Watermark Tool?

A PDF watermark tool lets you stamp text or image watermarks on every page of a PDF directly in your browser — no Adobe Acrobat, no software installation, and no account needed. Customize the watermark text, font, color, opacity, rotation, and position, then download the stamped PDF instantly.

At PDFFixNow, you can add a watermark to a PDF online for free. Works on Windows, Mac, iPhone, and Android.

Types of watermarks you can add: Our tool supports two types: Text watermarks — any custom text such as CONFIDENTIAL, DRAFT, SAMPLE, or your company name — and Image watermarks — your logo or any JPG/PNG image placed at a custom size, position, and opacity. Both types are permanently embedded into the PDF page content.

Why watermark a PDF? Watermarks serve two main purposes: protection — marking a document as confidential, a draft, or for review only — and branding — adding your company logo or name to every page of a report, proposal, or ebook before sharing it externally.

How to Add a Watermark to a PDF in 3 Simple Steps

1

Upload your PDF

Drag and drop your PDF into the upload box or click to browse your device. You can upload a single file or up to 10 PDFs for batch watermarking.

2

Configure your watermark

Choose Text or Image watermark. For text: enter your text and set font, size, color, opacity, and rotation angle. For image: upload your logo and set position and opacity. The watermark will be applied to every page of the PDF.

3

Download your watermarked PDF

Click "Apply Watermark" to stamp your PDF. Download the watermarked file immediately. For batch uploads, all files are packaged into a ZIP archive.

When Should You Add a Watermark to a PDF?

PDF watermarks are used in many professional workflows to protect, brand, and manage documents. Here are the most common situations where adding a watermark is the right choice.

  • Stamp CONFIDENTIAL on a sensitive business proposal or legal document before sharing it externally.
  • Mark a PDF as DRAFT before sending it for review to prevent recipients from treating it as a final version.
  • Add your company logo to every page of a report or presentation before distributing it to clients.
  • Watermark a PDF ebook or digital product with SAMPLE before sharing a preview with potential buyers.
  • Stamp FOR REVIEW ONLY on a contract before sending it to a counterparty for initial discussion.
  • Add a copyright notice watermark to a PDF containing original research, artwork, or creative work.
  • Brand a batch of invoices or receipts with your company logo before emailing them to customers.
  • Stamp NOT FOR DISTRIBUTION on internal documents before sharing them within a restricted group.

Why Use PDFFixNow to Add a Watermark to a PDF?

Custom Text Watermarks

Create text watermarks with any wording — CONFIDENTIAL, DRAFT, SAMPLE, your company name, or any custom text. Choose font, size, color, opacity, and rotation angle. Set the watermark diagonal, horizontal, or at any custom angle.

Flexible Positioning & Opacity

Place your watermark exactly where you want it: center, top-left, top-right, bottom-left, bottom-right, or a custom position. Control opacity from fully transparent to fully opaque to keep the watermark visible without obscuring your content.

Image Watermarks

Upload your company logo or any image (JPG or PNG) and use it as a watermark. Set the size, position, and transparency to integrate it seamlessly into every page of your PDF without overlapping important content.

Permanent & Tamper-Proof

Watermarks added by our tool are permanently embedded into the PDF page content. They cannot be easily removed by recipients without specialist software — unlike simple overlay watermarks that can be stripped with a text editor.

Batch Watermark Multiple PDFs

Apply the same watermark to up to 10 PDF files at once. Upload all files, configure your watermark settings once, and process the entire batch in a single operation — saving time when stamping multiple reports or documents.

Secure & Private Processing

Your documents are processed with TLS encryption and automatically deleted from our servers after 2 hours. We never read, store permanently, or share your files.

Tips for Adding Effective PDF Watermarks

A watermark opacity of 20-30% is visible enough to be clearly readable when someone looks for it, but subtle enough not to obscure the main document content when reading normally. For security stamps like CONFIDENTIAL, slightly higher opacity (40-50%) can be appropriate.

Diagonal watermarks (typically 45°) are harder to crop or edit out than horizontal ones. They cover more of the page and are the standard orientation for security watermarks like CONFIDENTIAL or DRAFT.

When using your company logo as a watermark, use a PNG file with a transparent background. A logo on a white background will place a white rectangle over your document content. A transparent PNG blends seamlessly with the page.

If you regularly produce reports, invoices, or proposals that need to be branded, use our batch upload feature to watermark multiple PDFs with the same settings in one operation. This ensures consistent logo placement and opacity across all documents.

For maximum document security, after adding a watermark, use our Protect PDF tool to password-encrypt the watermarked file. This prevents recipients from opening the file in editing tools that might allow watermark removal.

Before downloading, review the watermark position and opacity in the preview. If the watermark is too prominent or covers key content, adjust the opacity or reposition it before applying to the final file.

Frequently Asked Questions

Upload your PDF to our watermark tool. Choose between a text watermark or an image watermark. For text: type your watermark text and customize the font, size, color, opacity, and angle. For image: upload a JPG or PNG logo and set its size and position. Click "Apply Watermark" to stamp the watermark on every page and download the watermarked PDF.

Yes. Upload any JPG or PNG image — your company logo, a stamp graphic, or a custom image — and place it as a watermark on your PDF. You can control the image size, position, and opacity to achieve the right level of visibility without obscuring your document content.

Yes. Upload up to 10 PDF files at once and apply the same watermark settings to all of them in a single operation. All watermarked files are packaged into a ZIP archive for download. This is ideal for stamping a series of reports, invoices, or contracts with the same branding or security mark.

No. Watermarks added by our tool are permanently embedded into the PDF page content as part of the page graphics layer. They cannot be removed using standard PDF readers or simple editing tools. For maximum security, also consider password-protecting the watermarked PDF using our Protect PDF tool to prevent unauthorized editing.

Adding a text watermark increases the PDF file size only slightly — typically by a few kilobytes — because text is stored very efficiently in PDFs. Adding an image watermark may increase the file size more noticeably depending on the size and resolution of the image. If file size is a concern after watermarking, use our Compress PDF tool to reduce it.

Yes. Our PDF watermark tool is fully mobile-friendly. Open PDFFixNow in Safari (iPhone/iPad) or Chrome (Android), upload your PDF, configure your watermark settings, and download the watermarked file — all from your phone or tablet without installing any app.

Yes. The watermark is applied to every page of the PDF document automatically. There is no option to apply it to selected pages only — the watermark covers all pages uniformly. If you need to watermark only specific pages, split the PDF first using our Split PDF tool, watermark the relevant section, then merge the parts back together.

Our text watermark tool provides a selection of professional fonts suitable for document stamping. You can also customize the font size, color (including custom hex colors), and rotation angle to match your branding or security requirements.

You can watermark up to 10 PDF files per session for free. There are no daily limits — you can watermark as many files as you need by uploading in batches. No account is required.

Yes. All files are uploaded and processed with TLS encryption. Your PDF files are automatically and permanently deleted from our servers after 2 hours. We never read, store permanently, or share your documents.