GNU/Linux Desktop Survival Guide by Graham Williams
Desktop Survival Project Home Preface Advocacy History Distributions Installing GNU/Linux Basic Survival Wajig Applications AI, Machine Learning, Data Science Android - GNU/Linux Devices Audio Backup Booting CD Chinese ChRoot Clock Cloud Computing Command Line Databases DIA Directories Disks Emacs EcoSysL Email Evolution Files File Systems Firewalls Floppy Disks FreedomBox Fonts Ghemical Glade GNOME Graphics, Images, Photos Hardware Initialisations on Booting Installation Examples IOT Java KDE Kernels Keyboard Konqueror KVM Switch LaTeX Log System Login Magellan MATE Mathematics Memory Modems Mounting Devices MS/Windows Music MySQL Nautilus Networks NFS NT File System Oracle Packages Partitions Passwords PDF Power Management PPP Presentations Printing Python R Remote Desktops Rsync Samba Scanning Science Screens Security Sketch Spell SPlus Spruce Spreadsheet SSH SUDO Swap Teradata Data Warehouse Themes TV Unity USB Version Control Video Virtualization Voice over IP World Wide Web WebCam WordPress Web Sites Word Processing and Printing X XML Troubleshooting Index

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Optical Character Recognition

A readily available ocr tool for Ubuntu is tesseract. See https://github.com/tesseract-ocr/tesseract.