Xpdf-tools-win-4.04

-r 150 sets the resolution to 150 DPI (dots per inch). Higher numbers increase image clarity and file size.

: The update addresses various bugs found in previous 4.0x versions, making it one of the most stable releases in the current branch. Pros and Cons Pros : xpdf-tools-win-4.04

As of 4.04, this suite remains a standard for non-graphical PDF processing. However, administrators should always verify they are using the latest available version if processing untrusted PDF files from external sources, as PDF parsers are frequent targets for exploitation. -r 150 sets the resolution to 150 DPI (dots per inch)

Solution: The PDF likely contains CID (Character ID) fonts or non-standard encoding. Try the -raw switch to skip text normalization, or -enc UTF-8 to enforce correct output. xpdf-tools-win-4.04