FAQ ================================================ Frequently Asked Questions ------------------------------ How can I contact the author? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The author can be contacted at this email: ``contact@codepoems.eu`` I like the program. How can I donate / support it? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ You can subscribe to my `Patreon `_. Thank you. Which technologies are used? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ XL Converter was written in Python and PySide6. Image processing is done via libjxl, libavif (AOM AV1), and ImageMagick. How will I know the conversion was successful? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The program will notify you when something goes wrong. What will happen if "Delete Original" is enabled and the conversion fails? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The original image will stay intact. There are safety mechanisms. The program doesn't do what I need. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Try `XnViewMP `_ (Ctrl + U opens the converter). It's better suited for advanced tasks. Generated PNG images can be used with XL Converter. Where are config files located? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ * Windows (installer): ``%LOCALAPPDATA%/xl-converter`` * Windows (portable): ``xl-converter/_internal/user_data`` * Linux: ``~/.config/xl-converter`` Where is the temp directory located? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ XL Converter uses the output directory as the temp location. What are the "tmp\_" files in the output directory? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Those are temporary files. You may see them left over from canceled or failed conversions. You can safely remove them. What is XL Converter, who made it, and when? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ * XL Converter is an image converter focused on technologies with high compression ratio. The program can encode JPEG XL, AVIF, JPEG (with JPEGLI), WebP, and PNG. It's a popular choice for Lossless JPEG Transcoding. * XL Converter was created entirely by one programmer -- me. You can call me Jacob. * The first public version was published in August 2023. The program was frequently worked on ever since. Is XL Converter safe? ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Yes! * The source code is `publicly available `_ (and auditable). * Every release is scanned with multiple Anti-Viruses. * XL Converter has been out since August 2023. Hundreds of people trust it. Please, make sure you are downloading XL Converter from the `official website `_. Downloading software via unofficial means can be unsafe. False positives are rare, but may happen -- `here is why `_. Regarding VirusTotal, false positives are very common when only up to 4 engines flag a file as malicious. **Please make sure the engines you believe aren't notorious for false positives.** Some engines on VirusTotal are poor quality.