SearchWP Xpdf Integration GPL Overview:
Warning: This Extension requires the use of
exec() and also requires you to install Xpdf command-line tools yourself.
SearchWP offers the unique feature of extracting plain text from PDF files uploaded to your WordPress website. Out of the box, SearchWP attempts to do this using only PHP, but due to the complexity and variation of the PDF format that sometimes results in content not being accurately extracted. Enter Xpdf.
Xpdf has a set of command line tools that must be installed on your server in order for this Extension to work. Instructions are included here.
Using the Xpdf Integration Extension you can offload all the work PHP has to do in processing your PDF files to Xpdf’s command line tools, which are extremely fast and accurate when extracting content from your PDFs. After activating the Extension, you will need to follow the installation instructions. Once installed, SearchWP will offload the PDF content extraction process to Xpdf.