I recently wiped my computer and did a clean install of everything. I’m now running Krita 5.2.2 and working on very similar projects to before but the file size has gone up from around 200mb to 1.5-2gb. I’m basically just using whatever default settings this version came with so I presume there’s an easy fix to this? Can anyone point me in the right direction for how to reduce the file sizes?
Hi
You’re talking about .kra file size on disk?
It’s difficult to provide an answer as “very similar projects to before” doesn’t mean anything for someone who don’t know what kind of project you’re working on… 
Which color space the document use?
Which document dimension?
How many layers and what’s inside layer?
Is it animation file?
Do you embed references image?
File size is huge for absolutely all new projects, or only one?
What was the previous version of Krita?
Do you have an example file to share?
Grum999
Also,
Which operating system is this now and what did it used to be?
Where did you get it from?
Actual file size or memory consumption?
Yes, the .kra
Size is 2470x3508 (w/ some variance but this is about normal)
Whole buncha layers and embedded references images (but again i used those before)
I don’t remember which version of Krita I had before the wipe, sorry. It wasn’t THAT old, from 2023 sometime likely.
New projects w/ the same settings are around 20MB so it’s the layers inside that are the issue. I don’t immediately see anything different from my old files TBH. I always use a ton of layers and periodically flatten them.
Running Linux Mint 21.3 and previously was I think 19.1 . Got Krita from snap
New projects w/ the same settings are around 20MB so it’s the layers inside that are the issue
Ok maybe there’s data outside the visible document canvas.
you can do “image > trim to image size”
And Save As (not save!!)
Is the size of the saved document is “normal”?
Grum999
I just noticed soemthing kind of odd that, when I opened one of my old images (from before the update), it says it.s 1.8GB in Krita IE
But in my file manager it says the file is only 192MB. Um… now I’m even more confused.
It IS running slower in general and there’s the slight screen anomalies that happen (tiny dots on the screen that flash for a second) that didn’t use to be there and I just was ignoring. Perhaps some setting issue? I vaguely remember with my old Krita changing some setting because the cursor was laggy but I installed that version many years ago and I just don’t remember. But i did do some changes from the base settings for better performance. Sorry I can’t remember any more!
this value is how much memory is used by file in Krita
The file size is normal then?
This is normal the file size does not match the memory usage, and 1.8GB memory usage for an image is not a big deal, according to how many layers/group layers you have to manage.
This is difficult to tell what happen here…
Did you have activated canvas graphics acceleration?
You’re on linux, do you have X11 or Wayland as compositor?
Krita is not yet compatible with wayland
Also if you have NVidia graphic cart, it could be even worse…
Grum999
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The memory footprint is larger because the file at rest is compressed but when you’re actually working on it needs to be uncompressed to be editable plus a bunch of others factors that change memory usage. File size is not memory "size*.
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Ah! Okay perhaps i was totally confused about that because it’s running much slower. This is an old laptop from 2011 but it’s still holding up pretty well (32gb of memory, I spent nearly $4000 back in the day when I bought it). Yeah, it’s an Nvidia.
Are there any like threads or videos or places I might find some general tips on tweaking the settings for older machines? I can work like this but because it used to run better hopefully there’s an easy fix now that I know I was looking at the wrong thing.
After a fresh install the performance settings are probably at it’s default. By default it doesn’t utilize all the resources it could. In Krita settings in the performance tab increase the CPU core limit, memory limit and enable canvas hardware acceleration.
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Sorry, got one more question. One thing that I AM doing differently is now I’m working now with a client who’s been sending me these huge resolution stock photos (some are like 8000x12000 or more). I’ve just been embedding them as references as-is as I work, could that be part of the problem? I can manually resize them down to something sensible since I have to scale them when they’re references anyhow just to fit them on the screen. Would embedding a giant reference image make a difference?
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Oh yes. Do the arithmetic.
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