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POPPLER.MD

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Poppler notes

quipucamayoc relies on Poppler for some of its PDF handling tools, such as:

  1. Extracting images from PDFs
  2. Extracting text from PDFs (usually embedded text from PDfs already OCRed)

Sadly as of 2022 there are no multi-platform Python bindings so we rely on calling the Poppler tools as command line utilities. Even then, installing Poppler on Windows might be a bit confusing so below we describe the alternative steps:

  1. Install the latest release from the poppler-windows Github repo.
  2. Alternatively, install Poppler on Windows using Anaconda
  3. Experimentally, quipucamayoc includes Poppler, although it might not correspond to the latest available release.

Note that for simplicity we include all files from poppler-windows (37 items; 20mb uncompressed) but only a subset is needed (18 files, 15mb):

  • freetype.dll
  • jbig.dll
  • lcms2.dll
  • Lerc.dll
  • libcrypto-3-x64.dll
  • libcurl.dll
  • libdeflate.dll
  • libpng16.dll
  • libssh2.dll
  • openjp2.dll
  • pdfimages.exe
  • pdfinfo.exe
  • pdftohtml.exe
  • pdftotext.exe
  • poppler.dll
  • tiff.dll
  • zlib.dll
  • zstd.dll