How to Combine Multiple Photoshop Files Into One

You have three, five, or twenty PSDs that should live in one master file, each as separate layers you can still edit. Flattening or copy-pasting pixels kills that flexibility. Here is how to combine multiple Photoshop files into one document while keeping every source as real layers.

When the PSDs are not open yet, use File > Scripts > Load Files into Stack. Click Browse, select every file you want in the merge, and run the script. Photoshop opens each image as a layer in a new document. This works for PSD, TIFF, JPEG, and other formats Photoshop can open.

Rename layers after the stack loads so you can tell which file is which. If dimensions differ, use Edit > Auto-Align Layers before you composite. This path is solid for assets sitting on disk, but it does not help when you already have a working session with many files open and named groups in place.

You can duplicate layers one file at a time: select layers in the source, copy, switch tabs, paste, repeat for the next source. You can also drag a layer group onto another document's tab and wait for that canvas to come forward.

That works for two files. With six or more sources, the repetition adds up, and it is easy to paste the same source twice or skip one entirely. You are also rebuilding layer order by hand instead of pulling every source into the target in one pass.

When your sources are already open, DocManager Pro shows every document as a thumbnail or list entry so you can pick sources and a target without tab hunting. Check each PSD that should contribute layers. Drag one checked source and drop it onto the target document in the panel. Every layer from each selected source copies into the target file.

DocManager Pro copies all layers from several selected open PSDs into one target document in a single drag.

To add one more open file to an existing target, drag that source thumbnail onto the target without selecting other sources. The plugin copies every layer from the source into the destination, same as merging two open documents in one move.

Drag one open PSD onto another to copy all layers from the source into the target without flattening.

Mixed canvas sizes stack layers with offsets that are hard to fix later. Align resolution and color mode across the batch when possible before you merge sources. If one file is 8-bit and another is 16-bit, verify the result after layers land. Group related layers in each source before you drag so names stay readable in the combined file.

Combining multiple Photoshop files into one document means keeping layers editable, not baking everything flat. Use Load Files into Stack for files on disk, or select your open sources and drag them onto one target when the session is already running. For thumbnail navigation, multi-document selection, and drag-and-drop merges between open PSDs, see DocManager Pro.