If you just screen-shot a PDF to get the images, you are losing quality since you’re not extracting at the native resolution. Let’s use PDFtk to extract the original images from the PDF.
Related: extracting a page(s) from PDF
List all images in a PDF
Some images are vector art and will not export with this program
pdfimages -list in.pdf
Dump all images from PDF
pdfimages -all in.pdf out
That will dump all the images in mydoc.pdf to the same directory, filenames starting with
out-. There might be a lot of images.
PDFtk extract images from PDF specific pages
say you want page 3 only:
pdfimages -all -f 3 -l 3 in.pdf out
-f first page to extract
-l last page to extract
PDFtk installs on any operating system easily, here’s how.
Linux PDFtk install
apt install poppler-utils
Windows PDFtk install
Mac PDFtk install
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