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What are PDF Xref tables? Xref tables are part of the original PDF file specification and one of the features which gives the PDF... AcroForms are the original Forms technology added to the PDF file format to provide interactive form elements such at radio buttons, text fields, combo... The PDF format makes extensive use of stacks. A stack is like a pile of books. If you add an item it goes on... One of the biggest issues within PDF files we find is the use of carriage returns, spaces and line feeds as gaps with the... What are subsetted fonts? Subsetted fonts are fonts which only include certain values. If you look at the fonts on your Computer you will...
