Jump to content
Our response time is longer than usual currently. We're working to answer users as quickly as possible and thank you for your continued patience.

Affinity Photo - How to Keep An Image the Same Size after Editing


Recommended Posts

I've noticed that Affinity Photo has a tendency to change an image's format and size after I've imported it. Let's say that I'm working on a PNG file sprite for a game. When I bring it into Affinity, it changes the format to .afphoto and the only way to save it back to PNG is to export it in PNG format, therefore changing the file size. How do I keep existing images the EXACT SAME format and size?

Thank you!

Link to comment
Share on other sites

You would normally use File > Export to save it as a PNG file, though File > Save will work (and overwrite the original) if you start with a PNG file and haven't added any layers.

But you can never guarantee, with any program, that the file size won't change when you save a PNG. That is entirely up to the method of file optimization chosen by the program, and the file content (including colors used). From what I've read, Affinity Photo's optimization for file size is not as strong as some other programs, so you might need to use an additional png optimization program to get the file size smaller, if you really need to.

-- Walt

Desktop:  Windows 11 Home, version 21H2 (22000.613) 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 
Laptop:  Windows 10 Home, version 21H2 (19044.1706) 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
        Affinity Photo 1.10.5 (.1342) and 2.0.0 / Affinity Designer 1.10.5 (.1342)  and 2.0.0 / Affinity Publisher 1.10.5 (.1342)  and 2.0.0
iPad Pro M1, 12.9", iPadOS 16.1, Apple Pencil 2, Magic Keyboard

      Affinity Photo 1.10.5 (.280) and 2.0.2 / Affinity Designer 1.10.5 (.21) and 2.0.2 / Affinity Publisher 2.0.2

Link to comment
Share on other sites

When you Open a PNG in Photo the document type is still PNG.
As mentioned by Walt above, if you Save that document it will be saved (and overwritten) as a PNG.
However, if you Save As then it will, by default, set the document type as AFPHOTO.
I don’t think there’s a way of overriding either of the above functionalities.
However, every document has a default Slice in the Export Persona which you can set to whichever file type you want (defaulted to PNG for a PNG file) and whatever settings you want.
This way you can edit your image as a Photo document (AFPHOTO), keeping all of your layers etc, and very quickly export via the Export Persona in a way that is consistent.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...

Important Information

Please note there is currently a delay in replying to some post. See pinned thread in the Questions forum. These are the Terms of Use you will be asked to agree to if you join the forum. | Privacy Policy | Guidelines | We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.