Don't know how it actually does it, but you can only save layered images in format that supports them. ie: photoshop native files .PSD or layered TIFFs. Jpegs can not be saved with layers.
To store image parts.
There are many resources and websites that offer information about Photoshop layers. Some of these websites that offer information are Adobe, Photoshop Essentials and Photoshop Cafe.
Photoshop layers may not import into After Effects if the file format is not compatible or if the layers are not properly organized in Photoshop. Make sure to save the Photoshop file in a format that After Effects supports, such as PSD or TIFF, and ensure that the layers are named and organized correctly for easy import.
color layers is simply color layers
Open the Layers window.
Yes, .psd files maintain the layers you create in Photoshop so that the next time you open your .psd file in Photoshop you can continue to work directly onto the layers.
One layer.
To select all layers in photoshop for a PC open up your layers window (It is under window - layers), hold down the shift key and click on each layer that you want to group together or edit.
Flattening layers just merges all layers down into one. It reduces file size, but once the image is saved and Photoshop is closed, you will no longer be able to undo the change and edit those layers separately.
No, there are Windows and Mac versions but they are separate.
it just does, like any other software. but it only remembers the last 20 things you did to your file so be warey of "memory" in photoshop Siotha Director of Training, xTrain Online Video Training Designer, Trainer, Photographer, Mom, Online TV producer
To manually align layers in Photoshop, select the layers you want to align, then go to the "Edit" menu, choose "Align" and select the alignment option you prefer, such as aligning them horizontally or vertically. You can also use the Move tool to drag and position the layers as needed.