4/11/2023 0 Comments Pdfinfo platoweb![]() ![]() Every cell contains the full stderr output - double click on it to see the content. I filtered the rows by the presence of any output to stderr from ANY command for a file. ![]() I have a database of 5031 PDF files, and I have tested them with the following commands:įor the presence of any kind of output to stderr, and saved that output to the spreadsheet: There are many things to decide on, and trying different tools may be beneficial. ![]() And, finally, even if there are some errors/warnings, it depends on what that error/warning is actually about (maybe a corrupt embedded image is not a big problem for you, and you consider such PDF file as valid). It depends on what exactly you want to check.ĭifferent commands behave differently, and some exit with status 0 - even if there were some errors.Īlso it depends on whether you treat a Warning (possibly also with exit status 0) as an indication of a corrupt file. For example on Ubuntu you can install qpdf using apt with the command: apt install qpdf You could also use your package manager of choice to get it. Qpdf has both Linux and Windows binaries available at. directory_to_scan/ -type f -iname '*.pdf' \( -exec sh -c 'qpdf -check "": FAILED \ \) This gets executed if errors are found: Print filename followed by ": FAILED" Check a single PDF with qpdf: qpdf -check test_file.pdfĬheck all PDFs in a directory with qpdf: find. qpdf has a -check argument that does well to find problems in PDFs. Please support the nixCraft with a PayPal donation or Patreon.My tool of choice for checking PDFs is qpdf. Keeping the site online is challenging, with everyone blocking Ads ?. nixCraft is a one-person show, and many of you use Adblocker. ? Was this helpful? Please add a comment to show your appreciation or feedback. ![]() Join the nixCraft community via RSS Feed or Email Newsletter. He wrote more than 7k posts and helped numerous readers to master IT topics. Vivek Gite is the founder of nixCraft, the oldest running blog about Linux and open source. For more info read documentation using the man command or pass the -help option: You learned about the pdfinfo command which acts as a Portable Document Format (PDF) document information extractor on a Unix and Linux CLI. $ pdfinfo myfile.pdf | grep -i author Summing up Of course, you can use the grep command or egrep command to filter out info for your scripts. We can see the document metadata (XML) as follows: $ pdfinfo -upw user-password-here filename.pdf How to print all JavaScript in the PDF You can specify the user password for the PDF file as follows: $ pdfinfo -opw owner-password-here file.pdf Providing this will bypass all security restrictions. Specify the owner password for the PDF file. PDF version: 1.3 A note about password protected pdf files Sample output: Title: Telecommunication Protocols Laboratory Course Pdfinfo to view tech information about a pdf file Let us see some examples for the pdfinfoc command. print and copy permissions (if encrypted).In addition, the following information is displayed too: The ‘Info’ dictionary contains the following values for given pdf file: Extracting poppler-utils-22.09.0_1: 100% What information is printed using the pdfinfo command The process will require 55 MiB more space. The following 10 package(s) will be affected (of 0 checked): Sample session from FreeBSD version 13: Password:įetching packagesite.pkg: 100% 6 MiB 6.7MB/s 00:01įreeBSD repository update completed. $ brew install xpdf FreeBSD install pdfinfo How to install xpdf on macOS / OS X to get pdfinfoįirst, install homebrew on macOS or OS X and then use the brew command as follows: The poppler-util Debian/Ubuntu/Mint Linux package contains command line utilities (based on Poppler) for getting information of PDF documents, convert them to other formats, or manipulate them. Use the apt-get command or apt command as follows to install the pdfinfo. Installing pdfinfo to find out PDF file information ![]()
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