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I have a PDF that has some embedded images, and for some reason I'm not able to extract them with wondershare PDF editor (they're not even seen as images). So I tried to make a screenshot with cmd+alt+4 but the captured images have a too low quality, specially when I insert them into a powerpoint presentation. This is how they are seen in the PDF: enter image description here

And this is how they appear in the presentation: enter image description here

I don't know if you can see the difference, but it's clearer when I run the presentation on my macbook. The problem is that I don't find a way to directly extract the images, so I'm looking for an alternative solution, something like a high-quality screenshot or another way to extract images from the PDF.

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  • What method did you use ?
    – Ruskes
    May 9 '15 at 16:24
  • To extract the images I used wondershare PDF editor, and there was only was inside it. I discovered that all the other elements are excel objects but an image is still missing. May 9 '15 at 17:10
  • Sorry, why would you need the wondershare? Can you give me the link to the pdf online so I can test.
    – Ruskes
    May 9 '15 at 17:14
  • I download the pdf and then open it in Preview, from there I can extract elements. I assume you have the try-it version of wondershare?
    – Ruskes
    May 9 '15 at 17:22
  • Yes I'm using the free version, this is the link: cs.cornell.edu/home/kleinber/wsdm13-threads.pdf May 10 '15 at 17:19
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Preview app on 10.6.8 doesn't let you extract images except by selecting then copying and creating a new file from clipboard.

Another way is using the free unix xpdf tools. They come with a utility called pdfimages. I just used it on a PDF and it perfectly extracted the images from the file.

For example...

pdfimages -f 2 -l 2 -j 27487.pdf testname

It extracted the images starting (-f) and ending (-l) on page 2 and saved as JPG.

xpdf is available from HomeBrew.

HTH

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Extract images and graphics directly with a free app: The Unarchiver (App Store) ; The Unarchiver is mostly used/known for compressing and uncompressing files.

Just right-click and Open With > The Unarchiver.app

Or simply drag the file directly to The Unarchiver

enter image description here

Works fine with pdf, doc, docx, xls, xlsx, ppt, pot, pps, pptx, and others.

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