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digital-art-composition-book/Notes/Convert PDF Coloring Pages.md

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2024-09-14 15:25:13 +00:00
---
tags:
- note
created_at: "2023-02-17"
source: "KemoNine Blog"
---
If you have access to `imagemagick` you can quickly convert a PDF coloring page(s) to grayscale PNG using the below procedure and notes.
## Notes {#notes}
- The `pdfimages` command below 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.
- The `-type Grayscale` parameter can be removed if you need color output.
- If the below fails Adobe has an online converter at: https://www.adobe.com/acrobat/online/convert-pdf.html
## Conversion {#conversion}
1. Install `imagemagick`
2. `pdfimages -list shipspage1.pdf`
3. ``for file in `ls *.pdf`; do convert -density 300 -type Grayscale ${file} ${file}.png; done``
## Resources {#resources}
- <https://stackoverflow.com/questions/50006770/how-to-get-dpi-of-a-pdf-file>
- <https://jdhao.github.io/2019/11/20/convert_pdf_to_image_imagemagick/>
- <https://stackoverflow.com/questions/2869908/convert-pdf-to-png-using-imagemagick>
- <https://legacy.imagemagick.org/discourse-server/viewtopic.php?t=11279>