blowup.tex is a small script for plain pdfTeX (not pdfLaTeX, which uses a
strict document structure) that blows up PDF, JPEG or PNG documents
pixel-perfectly across multiple pages, with a tunable overlap at the edges. PDF
documents even stay completely vectorized, retaining the tack-sharp fonts and
vector artwork. I wrote this script to create giant multiple-page posters of my
photos.
If you stumbled on this page through Google and are not familiar with TeX, I should explain that it's a free, open source, high quality, ultra-stable typesetting engine used primarily by academia and book publishers. To use this script, you first need to install a so-called TeX distribution. MikTeX is a good one for Windows. Do yourself a favour, learn how to write LaTeX (it's sort of like HTML) and never bother with Microsoft Word again.
Above: the original image and the sliced-and-diced version.
Download the script. Put the name of your file in the script where it says
YOUR-FILE-HERE.png. Choose how many pages wide you want your blowup to be.
(Height is calculated automatically.) In Linux, type pdftex blowup.tex to
generate a file named blowup.pdf in the current directory. In Windows, put
this script and your input file in the directory where pdftex.exe is located,
then open a command window, go to the directory, and type pdftex blowup.tex.
You'll find that a file called blowup.pdf has been created, which is your
poster.
This repo is licensed under the MIT License.