Archived copy. This page was recovered from the Internet Archive snapshot of /pages/viewpage.action?pageId=66682886 taken on 2021-01-25. The original wiki at wiki.opf-labs.org is being decommissioned.

Resources and Ideas

Created by Carl Wilson on Apr 01, 2014 · last edited by Carl Wilson · on Aug 27, 2014 (view history) · 9 versions

Resources

Installation of VirtualBox

In order to check that your VirtualBox and Vagrant installs are working please open a terminal (command line interface) in an empty directory and type:

You should see:

If so try typing:

This should start up a virtual machine image, it will take a minute or two and the output should start:

Once it's finished to test that it's worked try:

which should give the output:

If that's the case tidy up by typing:

If anything seems to go amiss feel free to contact our Technical Lead: carl [at] openplanetsfoundation [dot] org

Software

JHOVE Bespoke PDF Module used by DP Community.
Apache Tika Open Source characterisation / content extraction tool.
Apache PDF Box The Open Source PDF parsing library that powers Apache Tika .
pdfeh PDF Box preflight functionality wrapping.
pdf-preflight A Ruby pre-flight project on GitHub.

Ideas

Some ideas which kind of tools as an output can be useful to build during the Hackathon.

Create a scalable test if the PDF file can be opened by the Acrobat reader by using the (but I guess that is not open source) PDF Library
Create a scalable comparison workflow by converting both PDF files (original and new representation) to images and compare via e. g. matchbox tool if there are visible difference