Add Watermark To PDF with Golang via C++
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While converting an Excel file to PDF, you may have a requirement to add a watermark to the PDF file. The following examples show how to add text and image watermarks to PDF while rendering.
Add text watermark to PDF
You can easily add a text watermark to a PDF by specifying the text and the corresponding font. You can also set alignment, offset, rotation, opacity, foreground/background, and scale to the page in RenderingWatermark.
Add image watermark to PDF
You can add an image watermark to a PDF simply by specifying the image bytes. You can also set alignment, offset, rotation, opacity, foreground/background, and scale to the page in RenderingWatermark.