Frequently Asked Questions
My images are not recognised by the computer when I export by email
If you export a JPEG, PNG, or PTG file by email from your iPad app and the computer cannot recognise or open it properly, check the file name of the image that was sent as an attachment.
We have seen cases where the email app strips the file format from the name when attaching the file, so your computer cannot recognise what kind of file it is and doesn’t know how to open it. It isn’t our app doing it, so we can’t fix it.
This is easy to fix. If your attached file is just called “Painting”, with no file type (e.g. “Painting.jpg” or “Painting.ptg”), then just save the image to your computer and manually rename it to add the file type extension to the name.
Which export file types support layers?While ArtRage’s PTG format fully supports layers, the only file type that will also support layers when exported is PSD (Photoshop). All other file types will flatten the painting down to a single layer when exported.
I can’t preview the thumbnails for my files with my Steam installation of ArtRage?Because ArtRage uses a unique file format, normal operating systems cannot display the thumbnail image when browsing the files in folders. Normally, there is a special thumbnail viewing program installed as part of ArtRage, but it isn’t possible to include this with Steam installations for Windows operating systems.
Instead, you can download the free demo and take advantage of the thumbnail viewer that is installed along with it.
How can I rescue a PTG painting that won’t open in ArtRage?
If you receive an error message and are unable to open a PTG file, then it probably means that your ArtRage painting was were corrupted at some point. Damaged PTG files usually result from interrupted saves (for example, if the computer shuts down or ArtRage crashes). We will do our best to help troubleshoot the source of ArtRage errors, but usually cannot fix corrupted or partial files.
However, if you can see the image thumbnail then that means that the PNG preview image is intact. If you use File > Import Image File to open the damaged files, then it will import the PNG thumbnail.
This PNG file is the full size of your painting and high quality. It won’t rescue your layers or other paint information, but it will give you something to work with.
Backup Save Files
If crashes happen frequently for any reason, or you are working on an important painting, we recommend turning on the Store Backup Files option. You can find it by going to Edit > ArtRage Preferences > Advanced > Store Backup Files.
Adjust the slider to the number of backups you would like to keep.
Important: This function does not save a duplicate file. Instead, it keeps a history of previous saved versions.
Every time you save, it will delete the oldest backup file, and save the latest changes as a separate file, so if you have made important changes, save twice to update the older back up and the file you are actually working on.
What is the PTG Extension?
ArtRage paintings all use a unique, proprietary, file type, the .PTG extension. The file type can only be opened by ArtRage and can be used across all the different editions (including the free demos and iOS versions).
The reason we use a special file type is because ArtRage needs a way to preserve all the unique traditional painting aspects of the program, such as paint thickness, canvas texture, realistic colour mixing, lighting and how the different media should interact. It also records more standard attributes, such as layers and transparency, and preserves ArtRage-specific attributes such as pinned References, tracing images and symmetry.
What does “PTG” stand for?
PTG means “Painting” (PainTinG).
Why can’t I upload painting files to the internet or open it in other programs?
If you wish to upload an ArtRage painting to Facebook, DeviantART, Flickr, or any other website, or open it with other programs like Photoshop, Gimp or MSPaint, then you need to export your painting.
ArtRage uses the proprietary PTG format. This cannot be read by any other program. To create a JPEG, PSD, BMP, TIFF, GIF or PNG file, you need to go to:
File > Export As Image
If you are using an iPad, see: How to share paintings from the iPad
Why Does ArtRage Do This?
ArtRage does not give you the option to save in different formats because the ArtRage PTG file is the only one capable of saving all of the media information for your painting. If you were to accidentally “save” your painting as a JPEG (for example), then you would lose layers, transparency, paint wetness, paint thickness, lighting direction, and canvas texture, as well as any attached References, Tracing Images, Color Samples or other ArtRage specific features.
However, because you still need to use your paintings in other programs, it gives you a choice of formats to use to export a copy of your painting.
What image formats does ArtRage use?ArtRage uses the custom file type “PTG”, and all paintings will be saved in this format. It’s always a good idea to keep a copy of your work in Artrage painting format (PTG), as this format supports layers, paint thickness, paint wetness and so on. However you can also import and export your work as other standard image types.
To save a painting in a non-PTG format, go to File > Export as Image (ArtRage 2) or File > Export Image File (ArtRage 3 & later), then select the format you wish to use.
To load a non-PTG file as a new painting or as a new layer in an existing painting, go to File > Import Image File or Import Image File to Layer.