Watermark PDF
Add 'CONFIDENTIAL', 'DRAFT', corporate logos, or custom copyright text across all pages of your PDF with customizable opacity, angle, and position.
Select or Drop files here
Click to browse your local computer or drag and drop files into this area. Zero file upload required.
Key Features & Advantages
Why millions trust FileNova's client-side WebAssembly architecture for watermark pdf.
Text & Image Stamps
Type custom text or upload PNG logos as page watermarks.
Angle & Opacity Control
Adjust transparency, rotation angle, font size, and color.
Multi-Page Stamp
Apply watermarks across all pages or custom page subsets.
How to use Watermark PDF
Fast, browser-based workflow with zero software installation and 100% private processing.
- 1 Step 1
Upload PDF File
Select the document you want to stamp with a watermark.
- 2 Step 2
Configure Watermark Style
Enter your watermark text or upload a logo, then adjust position, opacity, rotation, and font size.
- 3 Step 3
Apply and Download
Click 'Apply Watermark' to stamp all pages in browser memory and download.
Frequently Asked Questions
Fact-based answers regarding watermark pdf capabilities, security, and format support.
Can I make the watermark transparent so text underneath is readable?
Yes. You can adjust the opacity slider from subtle transparent overlays to solid opaque stamps.
Can I use an image or company logo as a watermark?
Yes. You can upload a PNG, JPG, or SVG logo to stamp across your PDF pages.
Can I apply watermarks to specific page ranges?
Yes. You can choose to apply the watermark across all pages, odd/even pages, or custom page subsets.
Does watermarking modify the underlying document text?
No. Watermarks are rendered as a dedicated overlay layer without altering original text or vector elements.
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