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April 9, 2019 04:58
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Add/update metadata to an existing PDF file and encrypt it with random password.
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| #!/bin/bash | |
| # | |
| # Add/update metadata to an existing PDF file. | |
| # Encrypt it with random password. | |
| # | |
| CREATOR="Diego Arias" | |
| TITLE="Document title" | |
| PRODUCER="GNU/Linux PDF" | |
| KEYWORDS="keyword1, keyword2" | |
| SUBJECT="Document subject" | |
| AUTHOR="Diego Arias" | |
| if [ $# -ne 1 ]; then | |
| echo "You must enter PDF filename as a parameter." | |
| exit 1 | |
| else | |
| if [ ! -f "$1" ]; then | |
| echo "The file \"$1\" doesn't exist." | |
| exit 1 | |
| fi | |
| cp "$1" "$1".backup | |
| fi | |
| echo InfoKey: Creator > report.cfg | |
| echo InfoValue: $CREATOR >> report.cfg | |
| echo InfoKey: Title >> report.cfg | |
| echo InfoValue: $TITLE >> report.cfg | |
| echo InfoKey: Producer >> report.cfg | |
| echo InfoValue: $PRODUCER >> report.cfg | |
| echo InfoKey: Keywords >> report.cfg | |
| echo InfoValue: $KEYWORDS >> report.cfg | |
| echo InfoKey: Subject >> report.cfg | |
| echo InfoValue: $SUBJECT >> report.cfg | |
| echo InfoKey: Author >> report.cfg | |
| echo InfoValue: $AUTHOR >> report.cfg | |
| if [ ! -f report.cfg ]; then | |
| echo "The file \"report.cfg\" cannot be readed. Check if you have write permissions in the current directory." | |
| exit 1 | |
| fi | |
| clear | |
| echo "Make sure you have configured metadata variables to define into the PDF file. If you have done it and everything is okay, press any key to continue..." | |
| read _ | |
| pdftk "$1" update_info report.cfg output "$1".1 && echo "Loading metadata" || echo "Failed to insert metadata" | |
| pdftk "$1".1 output "$1".2 encrypt_128bit owner_pw $(apg -a 1 -n 1 -m 50) allow printing && echo "File created successfuly" || echo "Failed to encript" | |
| mv "$1".2 "$1" | |
| rm -f "$1".1 report.cfg | |
| echo "" | |
| exit 0 |
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