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Caution: Before removing a watermark from a copyrighted image, please read the WMF's analysis of the legal ramifications of doing so. Template documentation If you plan to make breaking changes to this template, move it, or nominate it for deletion, please notify Twinkle 's users and maintainers at Wikipedia talk:Twinkle as a courtesy, as the ...
There are many PDF print drivers for Microsoft Windows, the pdfTeX typesetting system, the DocBook PDF tools, applications developed around Ghostscript and Adobe Acrobat itself as well as Adobe InDesign, Adobe FrameMaker, Adobe Illustrator, Adobe Photoshop, that allow a "PDF printer" to be set up, which when selected sends output to a PDF file ...
True watermark. A true watermark is a recognizable image or pattern in paper that appears lighter or darker than surrounding paper when viewed with a light from behind the paper, due to paper density variations. A watermark is made by impressing a water coated metal stamp or dandy roll onto the paper during manufacturing.
A digital watermark is called imperceptible if the watermarked content is perceptually equivalent to the original, unwatermarked content. [7] In general, it is easy to create either robust watermarks or imperceptible watermarks, but the creation of both robust and imperceptible watermarks has proven to be quite challenging. [2]
Smallpdf is a Swiss online web-based PDF software, founded in 2013. [2] It offers free version with limited features to compress, convert and edit PDF documents. [ 3 ] And its paid version offers advanced features like OCR, compress, and more [ 4 ] .
Transparency in PDF was designed not to cause errors in PDF viewers that did not understand it – they would simply display all elements as fully opaque. However, this was a two-edged sword as users with older viewers, PDF printers, etc. could see or print something completely different from the original design.