Overlay Watermark PDF using C#
Overlay your PDF with Watermark
Features of Our Overlay Watermark PDF for C#
Add PDF Watermark using PDF Page Overlay easily with Overlay Watermark PDF C# library.
Lightning Fast Conversions
Process and convert files in seconds with our high-performance cloud infrastructure.
Accuracy Guaranteed
Our advanced algorithms ensure pixel-perfect and content-accurate file conversions.
Enterprise-Grade Security
ISO 27001, HIPAA, SOC 2, and GDPR compliant with encrypted file processing.
Global Infrastructure
Strategically located servers ensure low latency and high availability worldwide.
Developer Friendly
Comprehensive SDKs and clear documentation for quick and simple integration.
Time-Saving Automation
Automate repetitive document workflows and focus on what matters most.
Integrate using C#
Easy Overlay Watermark PDF integration programmatically using our simple C# SDK
NuGet library install
Install the ConvertAPI library from NuGet or compile from source code found in GitHub.
Authenticate
Sign up for a free account and authenticate the library using your Secret key or API token.
Customize Parameters
Set up the conversion parameters, and copy the auto-generated code snippet in your account dashboard.
Customizable Parameters
Fine-tune your automation with these powerful conversion options
Sets the password to open protected documents.
Set page range. Example 1-10 or 1,2,5.
Specifies the PDF file to use as overlay. Value can be URL or file content.
Specifies the page to use as overlay from the OverlayFile file.
Specifies the watermark scale in percent.
Specifies watermark opacity level.
Specifies watermark style, stamp or watermark. The stamp is placed over page content and watermark under page content.
Available values: stamp watermark
Specifies the web address to go when the watermark is clicked.
Specifies the page number to go when the watermark is clicked.
Specifies whether to use the page rotation parameter when placing watermark.
Specifies the horizontal watermark alignment.
Available values: left center right
Specifies the vertical watermark alignment.
Available values: top center bottom
Specifies the watermark X coordinate. If set overrides property HorizontalAlignment.
Specifies the watermark Y coordinate. If set overrides property VerticalAlignment.
Specifies measurement unit to use for the PositionX and PositionY properties.
Available values: points inches millimeters centimeters
Integrate within minutes
Our user-friendly interactive demo enables you to easily set up and test the conversion from your account dashboard with just a few simple clicks.
Set up Overlay Watermark PDF parameters
Upload your PDF document that you wish to convert, and set up any additional conversion parameters using our intuitive and user-friendly interface. You can fine-tune and adjust the conversion parameters to suit your needs with no technical knowledge required.
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Download the Conversion Result
When you have your conversion parameters set up, you can run the conversion and download the converted document to evaluate the Overlay Watermark PDF conversion quality. You can further adjust the parameters if needed, until you are satisfied with the result.
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Copy Auto-Generated Code Snippet
Once you are happy with the conversion result, you can copy the auto-generated code snippet to your project and use it to perform the conversion programmatically. This will save you time and effort, and you will be able to focus on your project development.
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Businesses trust us
Highest rated File Conversion API on major B2B software listing platforms: Capterra, G2, and Trustpilot.
"ConvertAPI has been a game-changer for our document automation workflows. Their conversion accuracy and API reliability are unmatched in the industry for over 7 years."
"ConvertAPI is a reliable, cost-effective solution with a proven track record of stability. It has grown significantly in maturity, adopting enterprise-grade practices over the years."
"We've integrated ConvertAPI across our entire document processing platform. The performance is exceptional and the support team is always responsive. Highly recommended!"
Data security is our top priority
We ensure that all document processing is handled securely in the cloud, adhering to industry-leading standards like ISO 27001, GDPR, and HIPAA. To enhance security even further, we can ensure that no files or data are stored on our servers and never leave your country.
Learn more about security