Removing found watermarks Leave feedback
GroupDocs.Watermark API enables you to easily find and remove a particular watermark from a document. Following code serves this purpose.
advanced_usage.searching_and_modifying_watermarks.RemoveWatermark
// Specify an absolute or relative path to your document. Ex: "C:\\Docs\\document.pdf"
Watermarker watermarker = new Watermarker("document.pdf");
PossibleWatermarkCollection possibleWatermarks = watermarker.search();
// Remove possible watermark at the specified index from the document.
possibleWatermarks.removeAt(0);
// Remove specified possible watermark from the document.
possibleWatermarks.remove(possibleWatermarks.get_Item(0));
watermarker.save("document.pdf");
watermarker.close();
GroupDocs.Watermark also enables you to search and remove the watermarks on the basis of some particular text formatting. You can provide a search criterion containing font name, size, color etc and the API will find the watermarks with matching properties. Following code snippet shows how to search and remove watermarks with a particular text formatting.
advanced_usage.searching_and_modifying_watermarks.RemoveWatermarkWithParticularTextFormatting
// Specify an absolute or relative path to your document. Ex: "C:\\Docs\\document.pdf"
Watermarker watermarker = new Watermarker("document.pdf");
TextFormattingSearchCriteria criteria = new TextFormattingSearchCriteria();
criteria.setForegroundColorRange(new ColorRange());
criteria.getForegroundColorRange().setMinHue(-5);
criteria.getForegroundColorRange().setMaxHue(10);
criteria.getForegroundColorRange().setMinBrightness(0.01f);
criteria.getForegroundColorRange().setMaxBrightness(0.99f);
criteria.setBackgroundColorRange(new ColorRange());
criteria.getBackgroundColorRange().setEmpty(true);
criteria.setFontName("Arial");
criteria.setMinFontSize(19);
criteria.setMaxFontSize(42);
criteria.setFontBold(true);
PossibleWatermarkCollection watermarks = watermarker.search(criteria);
watermarks.clear();
watermarker.save("document.pdf");
watermarker.close();
GroupDocs.Watermark API allows you to search and remove hyperlinks in a document of any supported format. Following code sample shows how to find and remove hyperlinks with a particular URL from a document.
advanced_usage.searching_and_modifying_watermarks.RemoveHyperlinksWithParticularUrl
// Specify an absolute or relative path to your document. Ex: "C:\\Docs\\document.pdf"
Watermarker watermarker = new Watermarker("document.pdf");
PossibleWatermarkCollection watermarks = watermarker.search(new TextSearchCriteria(Pattern.compile("someurl\\.com")));
for (int i = watermarks.getCount() - 1; i >= 0; i--)
{
// Ensure that only hyperlinks will be removed.
if (HyperlinkPossibleWatermark.class.isInstance(watermarks.get_Item(i)))
{
// Output the full url of the hyperlink
System.out.println(watermarks.get_Item(i).getText());
// Remove hyperlink from the document
watermarks.removeAt(i);
}
}
watermarker.save("document.pdf");
watermarker.close();
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