Mloren

It's something to do with how AP handles layers. The file has a lot of layers and that seems to be the cause. That file opens instantly in both Photoshop and Nomacs. Only AP chokes on it. AP also messes up the effects which look fine in Photoshop and Nomacs, but are wrong in AP.

Hey just an update to this issue: a friend suggested I export the .psd as a .tiff file and try opening that in Affinity Photo because .tiff can keep the layers. So I tried it but the same thing happens: It takes AP over 10 minutes to open the .tiff file and the colours are subtly wrong exactly like when opening the .psd. So I don't think this is .psd specific but rather the way AP handles layers and colours.

When I saw that Affinity Photo was getting a performance overhaul in 1.10, I thought maybe this issue had been fixed, but it still exists in the latest version: Affinity Photo struggles to open PSD files with a lot of layers, I've attached an example file, it takes about 15 minutes to open. It also doesn't really render correctly, many of the colours and effects are subtly off. I know PSD is a difficult format, but Nomacs (another image viewer) is able to open this same PSD in less than a second and it renders correctly. Nomacs uses a library called libqpsd to read PSD files, it looks like its free and open source, maybe AP should use it too: https://github.com/nomacs/libqpsd/tree/7472334d8e1ee9b37c18b9c7568ac91e5af4c9db I really think it's important that Affinity Photo handle PSD files well, if you don't it will greatly hinder people moving across to this software from photoshop, right now its the only thing stopping me from moving across completely. ProsperityMap.psd

I guess that might depend on the CPU. I don't have any trouble opening or editing it in Photoshop but I may have an above average CPU. But still, there's a difference between "takes 5 seconds to open and is a bit sluggish to edit" and "takes 15 minutes to open" I was hoping this could be fixed because I work with illustrators and graphic designers and often deal with huge PSD files. I'd love to move away from Photoshop and use AP instead, but one of our PSD files is 1.8 GB! I'm not even going to try and open that if it can't handle a 10mb file.

No sooner did I submit this bug than the file finally loaded, taking more than 15 minutes. I guess the real bug here is: PSD files take too long to open. Turning off hardware acceleration didn't make it load any faster. Also while a file is loading I can't close the application, it shows an error saying "At least one file is currently being opened. Please wait for files to load before quitting the application." which is a problem if it takes more than 15 minutes to load the file. I think AP needs to handle this a bit more gracefully: It shouldn't take this long, it should have a loading bar, and an option to cancel.

I just bought Affinity Photo and I'm testing it out on some PSDs I have from Photoshop. When loading small ones (2-3mb) it loads them but takes about 10 seconds to open them (which seems a bit long, they open in under a second in Photoshop), but when I tried to open a 10mb file it just didn't open at all. No error, it just stays on the empty AP window with a little note in the top right saying "Loading 1 document" but it never loads. I waited to see if it was just taking a long time but after 15 minutes it still hasn't loaded. I've attached a copy of the PSD I tried to load. ProsperityMap After Battle.psd