Add watermark into a PDF
Apply text or image watermarks in seconds with scalable precision. Choose typography, transparency, and position for enterprise-grade results.
Select PDF files
or drop PDF here
Watermarks deliver robust copy protection and source identification. Add text or image watermarks effortlessly-unlimited, zero-setup, scalable for large workloads.
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- Big PDF Capabilities: apply watermarks across multiple PDFs in a single, scalable operation.
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- Fast, scalable adjustments to watermark position, transparency, and size across large collections of PDFs.
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- Unified cross-platform support across Mac, Windows, Android, and iOS for enterprise environments.
The Industry-Leading Tool for PDF Watermarks - built for Big PDF Capabilities.
Deploy high-performance text or logo watermarks anywhere in your PDFs with speed, precision, and scale.
Flexibly Add Watermarks to PDFs
Apply text or image watermarks to safeguard documents and ensure traceability across massive workloads.
How Does PDF Watermarking Work?
Configure size, opacity, placement, and rotation for scalable, performance oriented watermarks. For text watermarks, tune color, typography, and font size. You will produce high-quality watermarked PDFs.
Work With Multiple Documents
Process batches of PDFs concurrently; watermark all files in one pass. Lock in default placements or define scalable custom positioning. Retrieve all watermarked PDFs in a single download.
Add Watermark With Live Preview
Launch immediately and preview the watermark at scale; adjust size, placement, and opacity for peak performance before applying.
Adjust Watermarks Easily
Fine-tune rotation and opacity with precise controls, leveraging scalable inputs for exact percentages-optimized for big PDF workflows.
Add Watermarks on Any Device
PDFBig delivers browser-native, install-free watermarking at scale. Experience instant, device-agnostic watermarking designed for large PDFs and enterprise-grade workloads.
Protect Your Files With Watermarks
Watermark PDFs at scale to deter unauthorized copying and clearly identify origin. PDFBig enables fast, scalable watermarking at no cost, optimized for heavy workloads.
Reliable PDF Watermarking
Your files are safeguarded with TLS encryption and automatically purged after processing, delivering reliable, scalable privacy and data lifecycle integrity.
Cloud - Based Processing
Performance-focused cloud-based watermarking for enterprises, offloading compute to the cloud to conserve device resources and deliver anytime, anywhere access with robust scalability.
How to Add Watermarks to PDFs Online at Scale
Step-by-step Guide to Scalable Watermarking for PDFs-Free with Our Tool
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Step 1: Upload PDF File
- Drag and Drop Your Files onto Our Tool
- Upload large PDFs from your local system or from cloud storage like Dropbox, optimized for heavy workloads.
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Step 2: Apply Watermarks to PDFs at scale
- Select 'Place Text' or 'Place Image' from the right-hand toolbar to set watermark geometry for large PDFs.
- Big PDF Capabilities: add a text watermark by entering your content in the input box on the sidebar.
- Big PDF Capabilities: to apply an image watermark, click 'Add Image' to select an image from your computer.
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Step 3: Set position on page
- Big PDF Capabilities: click 'Default' and select the position as header, center or footer to watermark on the PDF page.
- Big PDF Capabilities: click 'Custom' and drag the watermark to precisely position it on the PDF page.
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Step 4: Optimize performance with scalable controls for opacity, rotation, and text watermark formatting
- Big PDF Capabilities: drag the rotation handle to rotate the watermark, and adjust transparency for crisp, scalable rendering.
- Big PDF Capabilities: click on the text watermark to modify text color, font size, and font for consistent branding across large PDFs.
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