Scantools is a high-quality library and a matching set of command-line programs for the handling and manipulation of scanned documents. At present, the tools can convert image files to PDF/A. Files in JBIG2, JPEG, and JPEG2000 format are directly included in the PDF, other files are compressed in a lossless manner. HOCR files, which are produced by optical character recognition programs such as ‘tesseract’, can be used to make the PDF file searchable. The resulting files comply with the ISO PDF/A standard for long-term archiving of digital documents and offer compression rates comparable to that of the DJVU file format. There are currently three command-line utilities.
scantools.image2pdf converts images to a PDF/A compliant PDF file.
scantools.hocr2any converts HOCR files to text or renders them as raster graphics or PDF files.
scantools.ocrPDF adds a text layer to a graphics-only PDF file, without re-encoding graphics data or otherwise modifying file content.
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
If you’re running Ubuntu 16.04 LTS (Xenial Xerus) or later, including Ubuntu 18.04 LTS (Bionic Beaver) and Ubuntu 20.04 LTS (Focal Fossa), you don’t need to do anything. Snap is already installed and ready to go.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install scantools, simply use the following command:
sudo snap install scantools
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.