# Publishing a wallpaper
Once you feel like your wallpaper is ready, you can publish it on the Workshop, though this is entirely optional. You can initiate the upload process by clicking on Workshop at the top of the editor and then selecting Prepare for publishing.
Publishing your wallpaper will not keep a backup of your project files. Make sure to manually back up your wallpaper project files in the
wallpaper_engine\projects\myprojects directory if you wish to edit them in the future.
You will be presented with a publishing form where you can create a title and a description of your wallpaper. Additionally, you should select the appropriate genre for your wallpaper and you are required to select an age rating that fits the content of your wallpaper.
Wallpapers can be published with different levels of visibility: Publicly, Friends-only, Unlisted or Private, select the visibility level that you are comfortable with - you can always change the later.
Private uploads are a convenient way to back up your wallpapers without sharing them with anyone else, while Unlisted wallpapers can be accessed by anyone with the link to the wallpaper.
# Preview Images
Wallpaper Engine allows you to generate a static preview image with a few clicks or you can import a preview image that you have prepared with another tool. Make sure to always make the preview images suitable for all ages, even if your wallpaper targets an adult audience!
# Animated Preview Images
You can also use animated GIFs as a preview image. GIFs can be up to 256x256px but Wallpaper Engine will only ever request 128x128px preview images from the servers. If you want the best quality in the app, you should stick to 128x128px. The maximum allowed file size is 1 MB but we recommend keeping the size below 500 KB. See our FAQ website for a guide on how to create a GIF from your wallpaper:
Once you have filled out the wallpaper details, you can upload your wallpaper by clicking on the Publish button.
You can watch the following video to see the complete publishing process in action:
# Publishing Updates
In the future, you can push an update to your existing wallpaper by going through this process again. Wallpaper Engine will remember each project automatically publish an update to all your users rather than publishing a brand new wallpaper. Keep in mind that updates are received with a little bit of a delay, so don't be concerned if your users don't see the update immediately.