Stitch two JPEGs together into a PDF

Question

I need to take two 8.5in by 11in JPEG images and merge them together into two pages of a PDF. Is there a commandline or GUI tool to help me do this?

Answer 1

As you're interested in a two-pages pdf, you can do something similar

convert input1.jpg output1.pdf
convert input2.jpg output2.pdf

The next step is to make one pdf out of it. This can be easily done with gs. As explained here: https://www.linux.com/news/software/applications/8229-putting-together-pdf-files

You can also use the imagemagick toolkit to first stitch the jpg images, which can be done from command-line only.

convert -append input1.jpg input2.jpg output.jpg
convert output.jpg output.pdf

More info http://www.imagemagick.org/script/command-line-options.php#append

Answer 2

First create two pdfs for the two jpeg images using the OpenOffice word processor. Then you can merge the two pdfs using PDF-Shuffler.

Answer 3

One way is to create a LaTeX document which includes the images and in turn creates one pdf document holding both jpgs. Ruthlessly taken from another answer: you could do something like the following. Create a file image.tex with the content:

\documentclass{article}
\usepackage[active,tightpage]{preview}
\usepackage{graphicx}
\PreviewMacro[{*[][]{}}]{\includegraphics}
\begin{document}
\includegraphics{img1.jpg}
\newpage
\includegraphics{img2.jpg}
\end{document}

Then compile the file into a pdf document:

$ pdflatex image.tex

Answer 4

More of a comment on the state of the art rather than an answer, but:

I believe using a text editor (like LibreOffice or OpenOffice.org) or a text processor (like LaTeX) to generate a pdf version of the jpeg images is a bit overkill, as it is something as simple as a single image.

OTOH convert actually converts, it does not simply put the JPEG image inside a PDF container (maybe I'm wrong here and PDF does not support JPEG streams, but I think it does), so although convert is way easier and quicker, it's still a bit overkill — ironically, maybe either LibreOffice or LaTeX actually just copy the JPEG instead of converting it (but here I'd say it's not worth the trouble).

For the joining step, you can either use, as already pointed out, gs. There is also pdftk, which, IIRC, just glues the PDFs together (gs will read the PDFs and render a new pdf out of it (at least when used with pdfwrite, you're free to generate, e.g., a postscript file instead, although that's of little use here).

Answer 5

This is also a solution http://stackoverflow.com/questions/4283245/using-ghostscript-to-convert-jpeg-to-pdf.

But it seems that the original JPEG's might be altered.