To make access to some subsets of files easier for users, we've gathered sets of files into tar.gz files.
For now, we've started with PDF files gathered from bug trackers.

Please see https://corpora.tika.apache.org/base/docs/bug_trackers/README.txt for a description of how
these files were gathered and from where.

As we mention in that README, this collection of files may contain malicious files.  Beware!

We include the files by project that we initially gathered in Feb 2020 in the archived/ directory.

For the Nov 2020 crawl, we increased the number projects dramatically.  Note that we did not re-crawl pdfium
in the Nov 2020 crawl.

For Nov 2020, we batched the PDFs by project:

batch1/
    PDFBOX

batch2/
    GHOSTSCRIPT
    TIKA

batch3/
    MOZILLA
    
batch4/
    LIBRE_OFFICE
    OOO (Open Office)
    pdf.js

batch5/
    androidpdfviewer
    cairo
    dejavu
    DSS
    FOP
    laravel-snappy
    libvips
    NUTCH
    ocrmypdf
    openpdf
    parsr
    pdfcpu
    PDFIUM
    pdfkit
    pdfminer.six
    pikepdf
    POI
    poppler
    prawn
    qpdf
    react-pdf
    REDHAT
    sumatrapdf
    tabula
    tabula-java

batch6/
    cairo-gitlab
    evince
    poppler-gitlab