> For the complete documentation index, see [llms.txt](https://notes.tatusl.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://notes.tatusl.dev/misc/pdfs.md).

# PDFs

## Compress with Ghostscript

`ghostscript` command can be used to compress PDF files. It has multiple predefined settings:

> `-dPDFSETTINGS=configuration`
>
> Presets the "distiller parameters" to one of four predefined settings:
>
> `/screen` selects low-resolution output similar to the Acrobat Distiller (up to version X) "Screen Optimized" setting.
>
> `/ebook` selects medium-resolution output similar to the Acrobat Distiller (up to version X) "eBook" setting.
>
> `/printer` selects output similar to the Acrobat Distiller "Print Optimized" (up to version X) setting.
>
> `/prepress` selects output similar to Acrobat Distiller "Prepress Optimized" (up to version X) setting.
>
> `/default` selects output intended to be useful across a wide variety of uses, possibly at the expense of a larger output file.

More information about these profiles can be found from <https://www.ghostscript.com/doc/current/VectorDevices.htm#distillerparams>

## References

* How can I reduce the file size of a scanned PDF file? - <https://askubuntu.com/questions/113544/how-can-i-reduce-the-file-size-of-a-scanned-pdf-file>