dioprem Posted December 6, 2015 Share Posted December 6, 2015 Hi guys. I'm very new to photo editing software in general, not just paint.net. I have a question regarding the TIFF format. I have a scanned photo in the TIFF format that is about 102MB in size. However when I simply open the photo in paint.net and save it again (without any editing) as a TIFF file, the size decreases to 57.8MB. I'm not quite sure why this is happening. I was always under the impression that the TIFF format is lossless, and so, if I were to save the exact same image without any editing, shouldn't the file size remain the same? Thank you in advance. Quote Link to comment Share on other sites More sharing options...
Ego Eram Reputo Posted December 6, 2015 Share Posted December 6, 2015 Hey dioprem - welcome to the forum TIFFs actually support quite a number of different types of compression. Among them is LZW which is lossless. That the filesize is being reduced leads me to I suspect that paint.net is doing a better job of compression than your scanner. Quote ebook: Mastering Paint.NET | resources: Plugin Index | Stereogram Tut | proud supporter of Codelab plugins: EER's Plugin Pack | Planetoid | StickMan | WhichSymbol+ | Dr Scott's Markup Renderer | CSV Filetype | dwarf horde plugins: Plugin Browser | ShapeMaker Link to comment Share on other sites More sharing options...
dioprem Posted December 6, 2015 Author Share Posted December 6, 2015 Hey dioprem - welcome to the forum TIFFs actually support quite a number of different types of compression. Among them is LZW which is lossless. That the filesize is being reduced leads me to I suspect that paint.net is doing a better job of compression than your scanner. Thank you for the prompt reply! So, paint.net always utilizes LZW compression for TIFFs? Quote Link to comment Share on other sites More sharing options...
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