PDF to JPG causes tons of white space and random placement?

[scande3]

I have several PDF files that seem to react quite differently when converted to a jpg. Essentially: they all generate with a ton of padded white space with the image placed randomly on the white canvas. Opening these PDFs do not display anything but the images centered. I have two samples of this behavior:

Using http://www.phdgaming.com/temp/pdf1.pdf, I get http://www.phdgaming.com/temp/image1.jpg that has the image in the top left of a large white canvas. The most basic command run for this (as more complex variations all failed) is:

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convert pdf1.pdf image1.jpg

Using http://www.phdgaming.com/temp/pdf2.pdf, I get http://www.phdgaming.com/temp/image2.jpg that has the image in the bottom right of a large white canvas. The most basic command run for this (as more complex variations all failed) is:

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convert pdf2.pdf image2.jpg

There are six total PDFs that are showing this behavior that I can't find a solution to after a few hours of searching. I'd appreciate any guidance that might help with this. (From what might be incorrect about the source PDFs, to how I could get the image to generate in the same place of the jpg, to how I could crop out the white background programmatically). Thanks in advance!

Oh - and my Image Magick version information:

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Version: ImageMagick 6.9.3-7 Q16 x86_64 2016-03-14 http://www.imagemagick.org
Delegates (built-in): bzlib djvu fontconfig freetype gvc jbig jng jp2 jpeg lcms lqr lzma openexr png tiff wmf x xml zlib

[fmw42]

What platform? Your Delegates does not show gs or gslib for Ghostscript, which is needed for converting PDF to a raster format. Not showing does not always mean it is not there. But you need to check to see if your version is current.

Your white padding is coming from the PDF. You likely have a raster image imbedded in a larger vector PDF shell. I am not sure how to get rid of that, except to extract the raster file from the pdf using something like pdfimage. See http://www.imagemagick.org/Usage/formats/#ps

On unix you can often get the GS version from

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gs --version

9.16 (mine, but it is not the most current)

See if you can find your version. You may need to upgrade your version of Ghostscript.

Alternately, you can trim the image after converting it.

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convert pdf1.pdf -trim +repage result.jpg

[snibgo]

You should also give your version of Ghostscript.

The images don't have a white canvas, but a transparent canvas. (Jpg can't record transparency.) We can trim off the transparency:

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convert pdf1.pdf -trim +repage out.png

Alternatively, you can extract the embedded raster image with pdfimages.

(Cross-posted with Fred.)

[scande3]

@fmw42 -> Using "-trim +repage" seems to remove the excessive space so that seems to solve my issue in this case. Not sure how the PDF has a transparent background (it never seems to show in any viewer) but these are files that I'm not sure what process created them. Thank you for the help!

@snibgo -> Thanks for your follow-up reply too!

As a late update that isn't that relevant if I use the command provided, my gs --version was 9.16.