immewnity Posted March 10, 2021 Share Posted March 10, 2021 I've come across a handful of TIFF files, created in an old version of Photoshop (Photoshop 7.0), that don't open properly in Affinity Photo. I don't really know how to explain it, so I've attached a comparison below, along with a sample file. This shows in the current version of Affinity Photo (1.9.1) and the previous build (1.9.0), have not tested in earlier versions. Sample file: EX_Team_Rocket_Returns_Mewtwo_Booster.TIF Comparison: Quote Link to comment Share on other sites More sharing options...
Gnobelix Posted March 11, 2021 Share Posted March 11, 2021 Hello @immewnity, open the TIF files in Photoshop and delete the alpha channel 1, then the TIF files should open properly in Affinity Photo. According to my knowledge, can Photoshop save alpha channels in TIFF files and Affinity-Photo not. Cheers EX_Team_Rocket_Returns_Mewtwo_Booster-2.tif Quote Affinity Photo 2.4: Affinity Photo 1.10.6: Affinity Designer 2.4: Affinity Designer 1.10.6: Affinity Publisher 2.4: Affinity Publisher 1.10.6: Windows 11 Pro (Version 23H2 Build (22631.3447) Link to comment Share on other sites More sharing options...
Staff Chris B Posted March 11, 2021 Staff Share Posted March 11, 2021 Hi—sorry what am I missing? The file opens up and look right to me in Affinity Photo without removing the Alpha channel. The only difference is that glow down the left-edge: I'm certainly not seeing what you showed in your comparison screenshot 😮 Quote How to format a bug report | Learning Resources | List of V2 FAQs | YouTube Tutorials Link to comment Share on other sites More sharing options...
Komatös Posted March 11, 2021 Share Posted March 11, 2021 For a proper comparison, a screenshot of both Photoshop and Affinity Photo would be helpful. For a quick screenshot (Windows 10), press the Windows key and the Print key. The screenshots should be found in the Pictures Quote AMD Ryzen 7 5700X | INTEL Arc A770 LE 16 GB | 32 GB DDR4 3200MHz | Windows 11 Pro 23H2 (22631.3296) AMD A10-9600P | dGPU R7 M340 (2 GB) | 8 GB DDR4 2133 MHz | Windows 10 Home 22H2 (1945.3803) Affinity Suite V 2.4 & Beta 2.(latest) Better translations with: https://www.deepl.com/translator Interested in a robust (selfhosted) PDF Solution? Have a look at Stirling PDF Life is too short to have meaningless discussions! Link to comment Share on other sites More sharing options...
Joachim_L Posted March 11, 2021 Share Posted March 11, 2021 34 minutes ago, Chris B said: The file opens up and look right to me in Affinity Photo without removing the Alpha channel. Which version did you open? The repaired one from Gnobelix or from the OP? Even with the same beta the original image opened wrong. Quote ------ Windows 10 | i5-8500 CPU | Intel UHD 630 Graphics | 32 GB RAM | Latest Retail and Beta versions of complete Affinity range installed Link to comment Share on other sites More sharing options...
Komatös Posted March 11, 2021 Share Posted March 11, 2021 @Chris B Open the file from the first posting. Then go to the channels and invert the background alpha channel. Quote AMD Ryzen 7 5700X | INTEL Arc A770 LE 16 GB | 32 GB DDR4 3200MHz | Windows 11 Pro 23H2 (22631.3296) AMD A10-9600P | dGPU R7 M340 (2 GB) | 8 GB DDR4 2133 MHz | Windows 10 Home 22H2 (1945.3803) Affinity Suite V 2.4 & Beta 2.(latest) Better translations with: https://www.deepl.com/translator Interested in a robust (selfhosted) PDF Solution? Have a look at Stirling PDF Life is too short to have meaningless discussions! Link to comment Share on other sites More sharing options...
2:3 Posted March 11, 2021 Share Posted March 11, 2021 8 hours ago, Komatös said: @Chris B Open the file from the first posting. Then go to the channels and invert the background alpha channel. ... that works, thanks. But it only shows either background and foreground. What if there is information on both channels? How do I show / combine both? Quote Link to comment Share on other sites More sharing options...
Staff Chris B Posted March 12, 2021 Staff Share Posted March 12, 2021 😳 I was sure I opened the file from immewnity... Inverting does work but ideally we'd like to open the file and have it just work. I will pass this back to the developers. Quote How to format a bug report | Learning Resources | List of V2 FAQs | YouTube Tutorials Link to comment Share on other sites More sharing options...
2:3 Posted March 12, 2021 Share Posted March 12, 2021 34 minutes ago, Chris B said: 😳 I was sure I opened the file from immewnity... Inverting does work but ideally we'd like to open the file and have it just work. I will pass this back to the developers. I remember I had that same issue with placing Tifs wit an alpha channel in Publisher some time ago. I was hoping that was solved, therefore I searched for that again.: In fact it does not work properly at all – there is a bright halo left around the selected shape. Last year I was told that: "The bright halos are because RGB values have been brightened by the broken TIFF importer. The TIFF importer seems to assume that the file's RGB values have been premultiplied with black where alpha is not zero, and so it un-premultiplies where alpha is not zero, hence the bright halos when alpha is filled. (Someone at Serif should have debugged this years ago!)" see my topic here: I don't know if that has been passed to the developers? Because I have 1000s of tifs from 25 years with all kind of channels here, that I cannot open in AP, I would be very interested in a solution. Quote Link to comment Share on other sites More sharing options...
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