How to Install GScan2PDF 1.8.7 release on Ubuntu 16.04, 17.04

     gscan2pdf is a GUI to ease the process of producing PDFs or DjVus from scanned documents. You scan one or several pages in with File/Scan, and create a PDF of selected pages with File/Save PDF. At maturity, the GUI will have similar features to that of the Windows Imaging program, but with the express objective of writing a PDF, including metadata. Scanning is handled with SANE via scanimage. PDF conversion is done by libtiff. Perl is used for portability and ease of programming, with gtk2-perl for the GUI. This should therefore work more or less out of the box on any system with gtk2-perl, scanimage, and libtiff.

GScan2PDF 1.8.7 Changelog: 

• units to scan and edit paper dialogues.
• unsupported libsane-perl offered as Frontend choice
• Fixed support for Poppler (pdftops) as postscript backend.
• Reload recursion limit in Edit/Preferences Set reload recursion limit as triangular number of number of scan options.  i.e. if there are 5 scan options, the recursion limit is 5+4+3+2+1=15
• Fixed crash with scanimage frontend due to empty cache
• Ghost save button, rather than hiding save dialogue if all pages removed.
• Fixed bug causing profile dropdown to be cleared after setting profile
• Filter out integers from tool warnings, analogous to the hex warnings from unpaper.
• Fixed visibility of options in save dialogue (again).
• Right mouse click in thumbnail panel makes the page range (e.g. in save dialogue) default to "selected".
• Take filename of PDF to email from default filename settings (and therefore from metadata). If this produces a blank filename, use "document.pdf".
• Fixed bug requiring scan dialog to be requested twice after changing frontend
• Update to Hungarian translation 

Installation instructions:

   Opening terminal (Ctrl+Alt+T) and running the command:

$ sudo add-apt-repository ppa:jeffreyratcliffe/ppa $ sudo apt-get update $ sudo apt-get install gscan2pdf

   Option, remove GScan2PDF 1.8.7:

$ sudo apt-get remove --autoremove gscan2pdf