I start by saying that I am new in the world of Photoshop. I was making some changes to a gif, I had finished making some changes, and I was going to continue the next day, so I saved and turned off the PC.
The next day I opened my file, and all the levels are gone, except one called “background”, does anyone know what happened? And the most important, what can I do?
Yes this happens since GIF does not support layers. Essentially you always want to save a PSD file for everything as a working copy then use export to publish the format you want.*
Theres nothing you can do. Data is lost. Put this down as a learning experience and move on with your life.
* this is not just a Photoshop thing. Similar things happen in most software. If you dont save in a native formats all bets are off.
gifscan be animated, but most other formats can't. Or howpngcan have transparency & translucency, butgifonly supports transparency andjpgdoesn't support either. — When you convert image to another file format, it will drop off any features not supported by it and not that many formats support layers. — Gifs actually don't support layers, but PS converts frames to layers..psd) and also a second time in the output format (.gifin your case). If you didn't save it as apsdor even agif, there likely isn't anything that can be done. — Even if you did save it asgif, it is possible you saved it as a static file with no animation. In any case, the fact that you don't see any frames with a single background layer suggests it's now one flat image file.