Blurry images after conversion usually happen because of low output resolution, high compression settings, or converting images into formats that reduce image quality. To avoid this issue, you can use
Softaken Image Converter Software that converts while retaining the original image quality. The software supports numerous image formats as JPG, PNG, BMP, TIFF, GIF, etc., while keeping resolution, color quality and clarity. Also, it supports batch image conversion without losing any pixel, and has a user-friendly interface for both beginner and pros. The right output format and quality settings in the software might assist avoid blurry or distorted images after conversion.
https://www.softaken.com/image-converter