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Not in US, and certainly not in any agency, but anytime I black box something in a pdf, I print it back as image to PDF printer.
by davchana 9y ago
Not in US, and certainly not in any agency, but anytime I black box something in a pdf, I print it back as image to PDF printer.
- Someone 9y agoI may misinterpret what you mean by “print it back as image to PDF printer”, but I doubt that removes the text. When printing the document, the program likely will just render the text first, and the black box over it. Reason? To be able to skip rendering the text, the computer must know: - a black box will get drawn over it. - that box completely covers the text. - that box will be drawn opaquely. Verifying that isn’t easy. Save to .png is safer. It doesn’t support layers, so what you see is what you get.
- TeMPOraL 9y ago> Save to .png is safer. It doesn’t support layers, so what you see is what you get. Just make sure your document->png converter doesn't do anything silly with the alpha channel.
- Someone 9y agoIt can be worse. Apparently, Adobe’s FireWorks writes bitmap layers and vector data to .png custom data chunks.
- davchana 9y agoPDF-xChange keeps text as text if printed normally, completely selectable, vectorized, but changes and rasterises it to image if printed as image, pixelated and jpeg-ized. At about 200% zoom it is clearly visible that it is pixelated, and nothing else.