Can I View Metadata Of Pdf From Command Line On Linux?

2025-09-02 00:27:28 151

4 Answers

Bella
Bella
2025-09-07 01:08:42
Hey, if you like poking around files the same way I do when I'm binge-reading liner notes, Linux makes PDF metadata super accessible from the command line.

For a quick peek I usually start with pdfinfo (part of poppler-utils). It gives a neat summary: Title, Author, Creator, Producer, CreationDate, ModDate, Pages, PDF version, page size, and more. Example: pdfinfo 'mydoc.pdf'. If you want to filter it down: pdfinfo 'mydoc.pdf' | grep -Ei '^(Title|Author|Producer|CreationDate|Pages)'.

If you want everything — the XMP, custom metadata and more — I love exiftool (package name libimage-exiftool-perl on Debian/Ubuntu). exiftool -a -u -g1 'mydoc.pdf' dumps lots of readable tags organized by group. For raw XMP in case you want to copy-paste XML, strings 'mydoc.pdf' | sed -n '//,/<\/x:xmpmeta>/p' can pull out the chunk (works for many PDFs but not guaranteed for all).

Other useful tools: pdftk 'mydoc.pdf' dump_data prints InfoKey/InfoValue pairs and is handy for scripts, and mutool (from mupdf) or qpdf can inspect internals or check encryption. If a file is password-protected you can often pass the password (pdfinfo has -upw/-opw). I often combine these in small scripts to audit batches of PDFs — it’s oddly satisfying. Play around and you’ll find the combo that fits your workflow best.
Hazel
Hazel
2025-09-07 05:50:11
On quiet evenings I like to treat PDFs like little puzzles, and the command line is where I open them up. Start with pdfinfo for the essentials — type pdfinfo 'document.pdf' and you’ll see Title, Author, Creator, Producer, CreationDate, ModDate, page count and sizes. It’s fast and great when you just need surface data.

If you want depth, exiftool is the better microscope: exiftool -a -u -g1 'document.pdf' prints detailed XMP, PDF/Info and other embedded tags, often revealing software versions and custom fields. For scripts that need the XMP XML, pull it out with strings 'document.pdf' | sed -n '//,/<\/x:xmpmeta>/p' and feed that into an XML parser. When metadata is embedded as PDF objects, pdftk 'document.pdf' dump_data shows InfoKey/InfoValue lines which are easy to parse; mutool from the MuPDF suite can also inspect structure and report whether the file is encrypted.

A few practical notes from tinkering: encrypted PDFs may require passwords (pdfinfo supports -upw/-opw), some viewers write odd Creator/Producer strings (Ghostscript, LibreOffice), and timestamps can be in UTC or local formats so watch for timezone quirks. If the PDF lives online, curl -sL URL > /tmp/doc.pdf then run pdfinfo on that temporary file. It’s a small ritual, but I enjoy seeing the breadcrumbs left by different editors and tools.
Zane
Zane
2025-09-07 13:14:45
Short checklist style for when I need metadata fast: install poppler-utils and exiftool (apt). Then use pdfinfo 'file.pdf' for a quick summary and exiftool -a -u -g1 'file.pdf' for full metadata including XMP. If you need the raw XMP XML: strings 'file.pdf' | sed -n '//,/<\/x:xmpmeta>/p'. For simple InfoKey pairs try pdftk 'file.pdf' dump_data. To change tags inline: exiftool -Title='New' -Author='Me' -overwrite_original 'file.pdf'.

Don’t forget encrypted PDFs may need passwords, and if you’re processing many files write a small shell loop to automate it. That combo covers almost every situation I run into.
Ximena
Ximena
2025-09-08 17:32:49
I usually keep things pragmatic and to the point: install poppler-utils and exiftool, then use pdfinfo and exiftool to view metadata. Pdfinfo 'file.pdf' gives a quick human-readable summary (Pages, Title, Author, Producer, CreationDate). Exiftool -a -u -g1 'file.pdf' will show everything including XMP, metadata groups, and embedded fields.

If you need to extract the raw XMP block for programmatic parsing try: strings 'file.pdf' | sed -n '//,/<\/x:xmpmeta>/p'. For batch inspection, loop over files: for f in *.pdf; do pdfinfo "$f" | grep -Ei '^(Title|Author|Pages)'; done. To edit metadata from the command line, exiftool -Title='New Title' -Author='Me' 'file.pdf' will create a new file backup by default; add -overwrite_original to skip backups. For older tools, pdftk 'file.pdf' dump_data is useful for simple InfoKey/InfoValue output. That’s my go-to set for quick audits and scripted fixes.
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