Recoll user manual
- English, HTML, one page
- English, PDF
- Italian (rather old)
You will find a number of useful tips for common issues and extensions on the Faqs and Howtos section.
- Indexing PDF XMP-metadata: a nice exemple of customizing a Recoll configuration and the PDF filter to use additional metadata, by Jeffrey Dick.
- Index size and indexing performance data.
- Result list format samples.
- Lessons learned while modifying Recoll indexing to be multithreaded.