How can I extract images from a PDF file? [closed]
I need to extract all the images from a PDF file on my server. I don't want the PDF pages, only the images at their original size and resolution.
How could I do this with Perl, PHP or any other UNIX based app (which I would invoke with the exec function from PHP)?
pdfimages does just that. It's is part of the poppler-utils and xpdf-utils packages.
From the manpage:
Pdfimages saves images from a Portable Document Format (PDF) file as Portable Pixmap (PPM), Portable Bitmap (PBM), or JPEG files.
Pdfimages reads the PDF file, scans one or more pages, PDF-file, and writes one PPM, PBM, or JPEG file for each image, image-root-nnn.xxx, where nnn is the image number and xxx is the image type (.ppm, .pbm, .jpg).
NB: pdfimages extracts the raw image data from the PDF file, without performing any additional transforms. Any rotation, clipping, color inversion, etc. done by the PDF content stream is ignored.
With regards to Perl, have you checked CPAN?
- PDF::GetImages - get images from pdf document
- PDF::OCR - get ocr and images out of a pdf file
- PDF::OCR2 - extract all text and all image ocr from pdf