# Movie - pdfToolbox Explained: Understanding page selectors

**URL:** <https://callas.discourse.group/t/movie-pdftoolbox-explained-understanding-page-selectors/44>\
**Category:** News from callas\
**Created:** [May 27, 2025, 2:31pm UTC](https://callas.discourse.group/t/movie-pdftoolbox-explained-understanding-page-selectors/44 "2025-05-27T14:31:29Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![David](https://yyz2.discourse-cdn.com/flex028/user_avatar/callas.discourse.group/david/32/1_2.png) [@David](https://callas.discourse.group/u/David)\
**Post date:** [May 27, 2025, 2:31pm UTC](https://callas.discourse.group/t/movie-pdftoolbox-explained-understanding-page-selectors/44/1 "2025-05-27T14:31:30Z")

</div>

For certain features in pdfToolbox it’s important to have a flexible way to select which pages to process. Whether it’s all even pages, odd pages, specific ranges or every nth page, the page selector gives you the flexibility to specify exactly which pages to include.

This video demonstrates several page selector expressions that you can use in various checks, fixups, and on the command line.

[![](https://canada1.discourse-cdn.com/flex028/uploads/callas/original/1X/9a14bd5c6532bee3a190497d44e60277e62cc00b.jpeg "Understanding page selectors") ](https://www.youtube.com/watch?v=AZSIfuhZeFc)