https://en.wikipedia.org/wiki/JPEG
http://gworks.arifkeremgogus.com.tr/wxw1/0kc5r.php?qm=bokeh-full-jpg-gif-png-bmp https://picresize.com/ http://simdel.co.id/ig19qb5/lclji.php?upd=bokeh-full-jpg-gif-png-bmp-onlineh http://feedp2p.com/uhxscka/exr-to-png.html http://debateks.com/ulkimp/install-pdf2image.html http://mnvtech.com/ri0emp/art-icon-png.html
https://www.shutterstock.com/blog/jpg-vs-png-vs-pdf https://jinaconvert.com/convert-to-jpg.php https://www.convertapi.com/png-to-jpg https://www.pngtosvg.com/ http://www.countingcharacters.com/convert-to-png-image https://onlineconvertfree.com/convert-format/jpg-to-png/
https://www.nytimes.com/2018/07/19/technology/personaltech/convert-photo-files-bulk.html https://wordtojpeg.com/ https://www.mathworks.com/matlabcentral/answers/77304-how-to-change-multiple-jpg-to-png-images https://help.gnome.org/users/eog/stable/format-change.html.en https://www.php.net/manual/en/imagick.setimageformat.php https://memorynotfound.com/convert-png-to-jpg-image-file-using-java/ https://www.computerhope.com/issues/ch001595.htm
A problem with the enlarge icon of the image display was addressed and fixed at Talk:Thumbnailed_images#TOC_colours, but the fix never made it into the implementation.
https://imagecompressor.com/ http://vargas-angel.de/xwq4j/how-to-open-a-png-in-camera-raw.html http://dichvunhaviet.com/axquhrn/base64-image-example-png.html https://burner.bonanza.com/ http://jacqleigh.iquantis.com/xuav/fkw0bv.php?wpq=bokeh-full-jpg-gif-png-bmp https://books.google.es/books?id=MdJO-mEsYV8C&pg=PA99&lpg=PA99&dq=conversion+image+png+en+jpg&source=bl&ots=-MOw_NOxd3&sig=ACfU3U1LHAcSIpqgb2gfTofzC27Jr9LUmg&hl=en&sa=X&ved=0ahUKEwjN9srOxcDkAhXSNcAKHaa6Dfo4ZBDoAQjtAzBS https://books.google.es/books?id=la212-tSNvcC&pg=PA107&lpg=PA107&dq=conversion+image+png+en+jpg&source=bl&ots=eBJHGGcpmn&sig=ACfU3U2Gm6572DOPUG9FVeYcp2pQsZ0b3Q&hl=en&sa=X&ved=0ahUKEwjN9srOxcDkAhXSNcAKHaa6Dfo4ZBDoAQjxAzBT