snapshot image from PDF document

Question

I want to make a snapshot image from an arbitrary page (i.e. not necessarily the first) in a PDF document. Any free tools for this? I'm using Delphi.
TIA
Steven

Answer 1

You can do this in 2 steps using pdftk and ImageMagick/Ghostscript

Step 1: Create a new pdf file with the page you are interested in:

pdftk.exe file.pdf cat 2 output page2_only.pdf

Step 2: Convert the new pdf to jpg:

convert -geometry 1600x1600 -density 200x200 -quality 100 page2_only.pdf page_snapshot.jpg

convert is an ImageMagick command.

ImageMagick requires Ghostscript to be installed in order for this to work. When I tested this, convert complained about invalid formatting of the PDF, caused by pdftk, but this did not seem to affect the output.