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cli
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/prepress -dNOPAUSE -dQUIET -dBATCH -sOutputFile=compressed_PDF_file.pdf input_PDF_file.pdf
| dPDFSETTINGS | Description |
|---|---|
| /prepress (default) | Higher quality output (300 dpi) but bigger size |
| /ebook | Medium quality output (150 dpi) with moderate output file size |
| /screen | Lower quality output (72 dpi) but smallest possible output file size |
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Best practices for cron
Version control
Keep it organized
Always test
Use scripts
Use aliases
Forward emails
Document everything
Avoid root
Chain things together
Avoid redirects to /dev/null
Don’t rely on email
Avoid passwords
Use full paths
Conditionally run
Use /etc/cron.* when appropriate
Efficiency rarely matters
When in doubt, run more often
