Looking for a converter

ONEEYEMAN · Advocate Joined: 01 Mar 2005 Posts: 3610

Hi, ALL,
I'm looking for a converter that can grab a PDF (which contains an image) and converts it to the PNG mage keeping transparency.
The portion of the image does contain white color, which will needs to be preserved - only background needs to be transparent.

Can GIMP do that?

Or maybe some other software?

Thank you.

szatox · Advocate Joined: 27 Aug 2013 Posts: 3131

Well, gimp does support transparency, so you can use it to save that image (and even has a "create new from clipboard" option)
If you have issues copying images from pdf using a pdf reader, you can use libreoffice draw for that. Requires USE=pdfimport.
It is far from a perfect, but it can access components and modify those documents.

I wonder if there is some way to automate it though. Gimp is not exactly a light-weight software... And it won't run unattended.

figueroa · Posted: Mon May 23, 2022 4:04 am Post subject:

Consider media-gfx/inkscape
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Goverp · Veteran Joined: 07 Mar 2007 Posts: 1997

pdfimages?
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Geneslaf · n00b Joined: 07 Jul 2014 Posts: 8

You might want to take a look at https://gist.github.com/innermond/d110d6234123bf87cc04.

As it points out the image and it alpha channel are stored as two images in the pdf. You can use pdimages (from app-text/poppler) to extract the images from the pdf and then use convert (from media-gfx/imagemagick) to recombine the image and alpha channels.