Qtrac DiffPDF 6.1.0 | Portable
Use DiffPDF to compare PDF files quickly and easily. DiffPDF is a commercial Windows graphical user interface (GUI) application ideal for office workers. DiffPDF shows pairs of pages from the two PDFs being compared with any differences highlighted. Comparisons can be made based on the text regardless of layout, or based on appearance (which accounts for fonts, colors, layout, diagrams, images, etc.).
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