55 lines
1.3 KiB
Markdown
55 lines
1.3 KiB
Markdown
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---
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title: Converting PDF Coloring Pages
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author:
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- KemoNine
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publishDate: 2023-03-23
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lastMod: 2023-03-23
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toc: true
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draft: false
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categories:
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- tips
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- art
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tags:
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- coloring
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---
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## Changelog
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{{< changelog >}}
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{{< change 2023-03-23 "Initial creation" >}}
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{{< /changelog >}}
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{{< end_section >}}
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## Required Program
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{{< back_to_top >}}
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If you have access to `imagemagick` you can quickly convert a PDF coloring page(s) to grayscale PNG using the below procedure and notes.
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{{< end_section >}}
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## Notes
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{{< back_to_top >}}
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- The `pdfimages` will get you a dpi listing for each page in the PDF that has an image, use that value instead of `300` in the below, **if** it is present.
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- The `-type Grayscale` parameter can be removed if you need color output.
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{{< end_section >}}
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## Conversion
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{{< back_to_top >}}
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1. Install `imagemagick`
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1. `pdfimages -list shipspage1.pdf`
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1. ``for file in `ls *.pdf`; do convert -density 300 -type Grayscale ${file} ${file}.png; done``
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{{< end_section >}}
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## External Resources
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{{< back_to_top >}}
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- <https://stackoverflow.com/questions/50006770/how-to-get-dpi-of-a-pdf-file>
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- <https://jdhao.github.io/2019/11/20/convert_pdf_to_image_imagemagick/>
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- <https://stackoverflow.com/questions/2869908/convert-pdf-to-png-using-imagemagick>
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- <https://legacy.imagemagick.org/discourse-server/viewtopic.php?t=11279>
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{{< back_to_top >}}
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