Adapt the PDFtk PDF tool's call syntax with Go
One of my favorite tools at the command line is the PDFtk utility, a veritable Swiss Army knife for merging PDF documents. However, when called, the tool expects unusual syntax for passing parameters, which I find hard to memorize and type every time. That's why I decided to wire up a variant in Go, which tries to guess what the user wants. En route to doing this, the inclined reader will discover how Go reads and writes files, extracts and manipulates single characters from strings, and calls external programs with interactive input, as well as find out how to cross-compile Go programs for various platforms.
For close to a decade now, I've been digitizing paper books and magazines with my scanner and then tossing them into the recycling bin. Sometimes a book comes out as two or more PDFs because the scanner got stuck between two stacks and I had to continue the scanning process with a new document. Sometimes the cover of a hardback book simply will not fit through the scanner feeder, which means that the front and back covers are individual PDF files from a flatbed scanner. PDFtk makes putting the parts together a breeze:
$ pdftk book-*.pdf cat output book.pdf
[...]
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
Two New Distros Adopt Enlightenment
MX Moksha and AV Linux 25 join ranks with Bodhi Linux and embrace the Enlightenment desktop.
-
Solus Linux 4.8 Removes Python 2
Solus Linux 4.8 has been released with the latest Linux kernel, updated desktops, and a key removal.
-
Zorin OS 18 Hits over a Million Downloads
If you doubt Linux isn't gaining popularity, you only have to look at Zorin OS's download numbers.
-
TUXEDO Computers Scraps Snapdragon X1E-Based Laptop
Due to issues with a Snapdragon CPU, TUXEDO Computers has cancelled its plans to release a laptop based on this elite hardware.
-
Debian Unleashes Debian Libre Live
Debian Libre Live keeps your machine free of proprietary software.
-
Valve Announces Pending Release of Steam Machine
Shout it to the heavens: Steam Machine, powered by Linux, is set to arrive in 2026.
-
Happy Birthday, ADMIN Magazine!
ADMIN is celebrating its 15th anniversary with issue #90.
-
Another Linux Malware Discovered
Russian hackers use Hyper-V to hide malware within Linux virtual machines.
-
TUXEDO Computers Announces a New InfinityBook
TUXEDO Computers is at it again with a new InfinityBook that will meet your professional and gaming needs.
-
SUSE Dives into the Agentic AI Pool
SUSE becomes the first open source company to adopt agentic AI with SUSE Enterprise Linux 16.