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Xpdf is an open-source PDF viewer for the X Window System and Motif.〔 Xpdf runs on practically any Unix-like operating system. Xpdf can decode LZW and read encrypted PDFs. The official version obeys the DRM restrictions of PDF files,〔(Xpdf - Cracking )〕 which may prevent copying, printing, or converting some PDF files.〔 There are patches which make Xpdf ignore these DRM restrictions,〔(Generic Xpdf Patch Instructions )〕 and these restrictions are patched out by the Debian distribution.〔(Okular, Debian, and copy restrictions )〕 Xpdf includes several programs that don't need an X Window System, including some which extract images from PDF files or convert PDF to PostScript or text. These programs run on DOS, Windows, Linux and Unix.〔 Xpdf is also used as a back-end for other PDF readers frontends such as KPDF and GPDF,〔 and its engine, without the X11 display components, is used for PDF viewers including BePDF on BeOS, '!PDF' on RISC OS, on PalmPDF〔(PalmPDF )〕 on Palm OS〔 and on Windows Phones.〔(PocketXpdf )〕 Two versions exist for AmigaOS. Xpdf needs a limited version of an X11 engine called Cygnix on the host system. AmigaOS 4 included AmiPDF, a PDF viewer which is based on 3.01 version of the XPDF. However both Apdf and AmiPDF are native and need no X11. ==xpdf-utils== The associated package xpdf-utils contains tools such as pdftotext and pdfimages. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Xpdf」の詳細全文を読む スポンサード リンク
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