The genesis for this code was in the blog post I wrote a while back. Read that to understand the purpose of this code.
The docker image is readily available at https://hub.docker.com/r/shreeniwasiyer/pdfcompressor/
Run it on the volume you want to and mount it to a folder you like, such as /pdfs as indicated below:
docker run -it -v /Volumes/FINENC/:/pdfs/ shreeniwasiyer/pdfcompressor bash
docker build -t pdfcompressor .
Run it on the volume you want to and mount it to a folder you like, such as /pdfs as indicated below:
#Replace Volume mount information as per your needs
docker run -it -v /Volumes/FINENC/:/pdfs/ pdfcompressor bash
build -t pdfcompressor:1.1 .
docker push shreeniwasiyer/pdfcompressor
In the docker container, you can run the compressor.sh like this:
root@a0b035f73364:/# compressor.sh /pdfs/ 100000
Running the Compressor on /pdfs/ and 100000
Compressed into /pdfs/.Trashes/501/compressed-2017-07-01.pdf
Compressed into /pdfs/.Trashes/501/Cash (USD)/compressed-13.8.pdf
Renaming Too-Small File /pdfs/.Trashes/501/Cash (USD)/18.00.pdf
Renaming Too-Small File /pdfs/.Trashes/501/Cash (USD)/18.pdf
Compressed into /pdfs/.Trashes/501/Cash (USD)/compressed-19.pdf
Compressed into /pdfs/.Trashes/501/Cash (USD)/compressed-2.75.pdf
Compressed into /pdfs/.Trashes/501/Cash (USD)/compressed-5.5.pdf
Renaming Too-Small File /pdfs/.Trashes/501/2015-09-30.pdf
Renaming Too-Small File /pdfs/.Trashes/501/2015-08-31.pdf
If you had used an earlier version that named files like /pdfs/John/DBS/toosmall-2017-04-30.pdf (i.e. the toosmall tag is in the front), then you can run rename.sh to get the tag switched to the end of the file name. This way if you are using the file names to sort, then the sorting order will continue to be maintained.
root@a0b035f73364:/# rename.sh /pdfs/John/DBS/ Renaming file from /pdfs/John/DBS/toosmall-2017-04-30.pdf to /pdfs/John/DBS/2017-04-30.toosmall.pdf Renaming file from /pdfs/John/DBS/toosmall-2017-05-31.pdf to /pdfs/John/DBS/2017-05-31.toosmall.pdf Renaming file from /pdfs/John/DBS/toosmall-2017-06-30.pdf to /pdfs/John/DBS/2017-06-30.toosmall.pdf Renaming file from /pdfs/John/DBS/toosmall-2017-07-31.pdf to /pdfs/John/DBS/2017-07-31.toosmall.pdf
If the first parameter (i.e. /pdfs/ in the above case) has a space, then the script doesn't work correctly.
You might occasionally run into these kind of errors - these are a result of poorly formed PDFs in the first place. You can ignore them.
**** Warning: /BBox has zero width or height, which is not allowed.
**** This file had errors that were repaired or ignored. **** The file was produced by: **** >>>> iText 2.0.7 (by lowagie.com) <<<< **** Please notify the author of the software that produced this **** file that it does not conform to Adobe's published PDF **** specification.
**** Warning: An error occurred while reading an XREF table. **** The file has been damaged. This may have been caused **** by a problem while converting or transfering the file. **** Ghostscript will attempt to recover the data.
**** This file had errors that were repaired or ignored. **** The file was produced by: **** >>>> Microsoft? PowerPoint? 2010 <<<< **** Please notify the author of the software that produced this **** file that it does not conform to Adobe's published PDF **** specification.
-
**** Warning: considering '0000000000 XXXXX n' as a free entry.
**** This file had errors that were repaired or ignored. **** The file was produced by: **** >>>> Mac OS X 10.10.5 Quartz PDFContext <<<< **** Please notify the author of the software that produced this **** file that it does not conform to Adobe's published PDF **** specification.
-
**** Warning: An error occurred while reading an XREF table. **** The file has been damaged. This may have been caused **** by a problem while converting or transfering the file. **** Ghostscript will attempt to recover the data.
**** This file had errors that were repaired or ignored. **** The file was produced by: **** >>>> Microsoft? Office Word 2007 <<<< **** Please notify the author of the software that produced this **** file that it does not conform to Adobe's published PDF **** specification.
**** Warning: An error occurred while reading an XREF table. **** The file has been damaged. This may have been caused **** by a problem while converting or transfering the file. **** Ghostscript will attempt to recover the data. **** Warning: stream Length incorrect.
**** This file had errors that were repaired or ignored. **** The file was produced by: **** >>>> Canon iR C3580 <<<< **** Please notify the author of the software that produced this **** file that it does not conform to Adobe's published PDF **** specification.
**** Warning: considering '0000000000 XXXXX n' as a free entry. **** Warning: considering '0000000000 XXXXX n' as a free entry. **** Warning: considering '0000000000 XXXXX n' as a free entry. **** Warning: considering '0000000000 XXXXX n' as a free entry.
**** This file had errors that were repaired or ignored. **** The file was produced by: **** >>>> Mac OS X 10.11.6 Quartz PDFContext <<<< **** Please notify the author of the software that produced this **** file that it does not conform to Adobe's published PDF **** specification.