![]() It also can make altering documents possible in your favorite image software, such as Lightroom or Gimp. It can also be helpful for reducing file size, as some PDFs can take up more drive space than image files. This is just one example of why converting PDF files to image files can be helpful. If you convert that PDF to a JPG, however, you can upload it directly to those social networks! If you wanted to share that advertisement on social media, you wouldn’t be able to, because most social media sites - Twitter, Facebook, Instagram, etc. As an example, let’s say you have a print advertisement for your restaurant in PDF. Having a JPG version of a PDF allows you to do more with that document. You can’t upload a PDF to Instagram, for example, because Instagram only accepts image files. This means you can’t upload PDF files to image-based systems. However, PDF files are classified as documents, not images. This may make PDF files seem similar to images. In other words, you can draft a PDF file on a Windows PC and it will look the same on an iPhone, a MacBook, or even a television. They usually have text, links, and sometimes images, but they are viewed universally on all systems. PDF files are like snapshots of document files. Common image file formats are JPG, PNG, and TIFF, for example. You can't get higher quality than that.Images are files that contain graphical information, usually of a photograph, drawing, or another kind of visual media. The extracted JPEGs were byte-for-byte identical to I tried this command on a PDF that I had made myself from a sequence (depending on what bitmap format the PDF was using). You may or may not need to follow that with a convert to. By default, pdfimages convertsĮverything to PNM format, and converting JPEG > PPM > JPEG is a lossy Probably also want to use the -j option to pdfimages, because a Them, because it gets you the raw data at its original size. Series of bitmaps, pdfimages will do a much better job of extracting It simply ignores any text or vectorĪs a result, if what you have is a PDF that's just a wrapper around a ![]() Pdfimages looks through the PDF for embedded bitmap images andĮxports each one to a file. pdfimagesĭoes not do the same thing that convert does when given a PDF asĬonvert takes the PDF, renders it at some resolution, and uses the Update: As you pointed out, gscan2pdf (the way you're using it) is just a wrapper for pdfimages (from poppler). (You can prepend -units PixelsPerInch or -units Perhaps you need to use -density to do the conversion at a higherĭpi: convert -density 300 file.pdf page_%04d.jpg Versions (as a PNG to avoid further quality loss). Perhaps cut the same section out of the poor quality and good quality Could you post some samples to illustrate? It's not clear what you mean by "quality loss". TLDR - Use pdfimages : pdfimages -j input.pdf output ![]() The method in the answer given here results in an output which is comparable in size to the input and doesn't suffer from quality loss. The currently accepted answer does the job but results in an output which is larger in size and suffers from quality loss. For example: pdftoppm input.pdf outputname -png -rx 300 -ry 300 Converting a single page or a range of pages of the PDF pdftoppm input.pdf outputname -png -f. This will output each page in the PDF using the format outputname-01.png, with 01 being the index of the page. You can use pdftoppm from the poppler-utils package to convert a PDF to a PNG: pdftoppm input.pdf outputname -png
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