Add watermark to PDF
Add a text watermark - position, size, color, opacity, rotation, and an optional tiled pattern.
1 · File
2 · Watermark
Only the built-in Helvetica font is used - no font is loaded from a third-party server. Processed on the server and never retained after the response.
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What this does
Stamps text onto chosen pages (or every page) with configurable size, color, opacity, rotation and position - or tiled repeatedly across the whole page for a denser watermark pattern.
How it works
Only the PDF library's own built-in font is used - no font is loaded from a third-party server. Processed on the server with Syncfusion.Pdf.Net.Core - nothing is retained after the response.
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