Convert many images to one PDF on Mac
If you have Leopard (10.5 or later) or Lion the easiest way is to use Preview. Just do the following:
- Open the first image in Preview
- Show the the sidebar (Shift-Command-D)
- Drag any additional images to the sidebar
- Go to File > Print (Command P)
- In the PDF dropdown list select Save as PDF
That's it! You should now have a PDF containing all your images.
If that doesn't work for you, you should look at any third-party solutions such as Adobe Acrobat Pro which has a combine feature or PDFLab.
I prefer using command line tools such as ImageMagick for this type of work. You can install IM with Homebrew:
brew install imagemagick
Afterwards you can do
convert *.jpg output.pdf
and if the resulting PDF is a bit too big you can try:
convert -quality 60 *.jpg output.pdf
Of course ImageMagick also works on other Unix systems, and even on cygwin.
(If you want a specific order you can also write out the .jpg filenames one by one. Or use * and rename the .jpgs in alphabetical order.)