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Use ghostscript to convert PDFs to version 1.5 (better for pdflatex)
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| #!/bin/bash | |
| set -e | |
| outfile=$2 | |
| if [ "$#" -eq 1 ]; then | |
| outfile=$1 | |
| fi | |
| gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -dSAFER -dCompatibilityLevel=1.5 -sOutputFile=temp.pdf $1 | |
| # so you can run on the same file | |
| mv temp.pdf $outfile |
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| #!/bin/bash | |
| set -e | |
| for var in "$@" | |
| do | |
| ./ghostscript_pdf_1p7_to_1p5.sh $var | |
| done |
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I prefer to convert PDFs to PDF/A-1 (PDF-version 1.4):
gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -dSAFER -dPDFA=1 -sOutputFile=temp.pdf $1I would also copy the metadata from the old file to the new one (otherwise, the pdf-creator is saved as ghostscript)
exiftool -TagsFromFile "$1" -All:All --CreatorTool --MetadataDate -XMPToolkit= temp.pdf -overwrite_originalAnd I would copy the date of the original file: (otherwise you have the convertion-time and not the creation-time of the original pdf)
touch -d @$(stat -c "%Y" "$1") "temp.pdf"