Gscan2pdf is a free and open source scanner application for Linux. Using Gscan2pdf, you can easily create multi-page PDF files and DjVus from scanned documents. It is released under GNU General Public License version 2.0 (GPLv2). It supports all SANE capable scanners, OCR output, Ocropus & tesseractm Crop, threshold & clean up scan and more.
Install Gscan2pdf on Ubuntu Linux
Gscan2pdf is available as a Ubuntu PPA and native Deb package file. Open the terminal application (ctrl+alt+t) and run below commands one by one. It will add and Gscan2pdf PPA on your system and install the latest version of Gscan2pdf on your system.
sudo add-apt-repository ppa:jeffreyratcliffe/ppa
sudo apt update
sudo apt install gscan2pdf
Install Gscan2pdf via DEB:
Download the latest version of Gscan2pdf in .deb package file format and save it on your Downloads folder. Here “gscan2pdf_2.13.2-1_all.deb” is the downloaded file name. You can change below command based on your file name.
sudo apt install ./Downloads/gscan2pdf_2.13.2-1_all.deb