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[Translated]20150730 Compare PDF Files on Ubuntu.md

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Translating by GOLinux!
Compare PDF Files on Ubuntu
================================================================================
If you want to compare PDF files you can use one of the following utility
### Comparepdf ###
comparepdf is a command line application used to compare two PDF files.The default comparison mode is text mode where the text of each corresponding pair of pages is compared. As soon as a difference is detected the program terminates with a message (unless -v0 is set) and an indicative return code.
The OPTIONS are -ct or --compare=text (the default) for text mode comparisons or -ca or --compare=appearance for visual comparisons (useful if diagrams or other images have changed), and -v=1 or --verbose=1 for reporting differences (and saying nothing for matching files): use -v=0 for no reporting or -v=2 for reporting both different and matching files.
### Install Comparepdf on ubuntu ###
Open the terminal and run the following command
sudo apt-get install comparepdf
**Comparepdf syntax**
comparepdf [OPTIONS] file1.pdf file2.pdf
**Diffpdf**
DiffPDF is a GUI application used to compare two PDF files.By default the comparison is of the text on each pair of pages, but comparing the visual appearance of pages is also supported (for example, if a diagram is changed or if a paragraph is reformatted). It is also possible to compare pticular pages or page ranges. For example, if there are two versions of a PDF file, one with pages 1-12 and the other with pages 1-13 because of an extra page having been added as page 4, they can be compared by specifying two page ranges, 1-12 for the first and 1-3, 5-13 for the second. This will make DiffPDF compare pages in the pairs (1, 1), (2, 2), (3, 3), (4, 5), (5, 6), and so on, to (12, 13).
### Install diffpdf on ubuntu ###
Open the terminal and run the following command
sudo apt-get install diffpdf
### Screenshots ###
![](http://www.ubuntugeek.com/wp-content/uploads/2015/07/14.png)
![](http://www.ubuntugeek.com/wp-content/uploads/2015/07/23.png)
--------------------------------------------------------------------------------
via: http://www.ubuntugeek.com/compare-pdf-files-on-ubuntu.html
作者：[ruchi][a]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:http://www.ubuntugeek.com/author/ubuntufix

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Ubuntu上比较PDF文件
================================================================================
如果你想要对PDF文件进行比较，你可以使用下面工具之一。
### Comparepdf ###
comparepdf是一个命令行应用，用于将两个PDF文件进行对比。默认对比模式文本模式，该模式会对各对相关页面进行文字对比。只要一检测到差异，该程序就会终止，并显示一条信息（除非设置了-v0）和一个指示性的返回码。
用于文本模式对比的选项有 -ct 或 --compare=text（默认），用于视觉对比（这对图标或其它图像发生改变时很有用）的选项有 -ca 或 --compare=appearance。而 -v=1 或 --verbose=1 选项则用于报告差异（或者对匹配文件不作任何回应）：使用 -v=0 选项取消报告，或者 -v=2 来同时报告不同的和匹配的文件。
### 安装comparepdf到Ubuntu ###
打开终端，然后运行以下命令
sudo apt-get install comparepdf
**Comparepdf 语法**
comparepdf [OPTIONS] file1.pdf file2.pdf
**Diffpdf**
DiffPDF是一个图形化应用程序，用于对两个PDF文件进行对比。默认情况下，它只会对比两个相关页面的文字，但是也支持对图形化页面进行对比（例如，如果图表被修改过，或者段落被重新格式化过）。它也可以对特定的页面或者页面范围进行对比。例如，如果同一个PDF文件有两个版本，其中一个有页面1-12，而另一个则有页面1-13，因为这里添加了一个额外的页面4，它们可以通过指定两个页面范围来进行对比，第一个是1-12，而1-3,5-13则可以作为第二个页面范围。这将使得DiffPDF成对地对比这些页面（1,1），（2,2），（3,3），（4,5），（5,6），以此类推，直到（12,13）。
### 安装 diffpdf 到 ubuntu ###
打开终端，然后运行以下命令
sudo apt-get install diffpdf
### 截图 ###
![](http://www.ubuntugeek.com/wp-content/uploads/2015/07/14.png)
![](http://www.ubuntugeek.com/wp-content/uploads/2015/07/23.png)
--------------------------------------------------------------------------------
via: http://www.ubuntugeek.com/compare-pdf-files-on-ubuntu.html
作者：[ruchi][a]
译者：[GOLinux](https://github.com/GOLinux)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:http://www.ubuntugeek.com/author/ubuntufix