Why a PSD opens blank or white outside Photoshop

A PSD carries two things: the layers, which only a program that understands Photoshop’s layers can draw, and a single flattened copy of the finished picture, which is what almost every other program shows. Photoshop writes that flattened copy only when Maximise compatibility is on. With it off, Photoshop still writes the section, filled with white, and notes in one flag inside the file that it is not the real picture. A viewer that ignores the flag shows the white. The fix, if you have Photoshop, is to turn the setting on and save a new copy. If you do not, open the file in something that draws the layers itself: PSD reads the flag and does this in the browser tab.

What is in a PSD

Adobe’s published file format puts a PSD in five sections, in order: a header with the size, colour mode and bit depth; colour mode data; image resources, a list of small tagged records; the layer and mask information; and last, the image data, one flattened picture of the whole document. Anything that is not Photoshop, from macOS Quick Look to a printer’s upload page, reads the last section, because drawing the layers means reproducing Photoshop’s blend modes, masks, effects and adjustment layers, which is most of Photoshop.

The setting is in Photoshop’s preferences under File Handling (Edit → Preferences on Windows, Photoshop → Settings on a recent Mac), where it is labelled Maximize PSD and PSB File Compatibility, with the choices Always, Never and Ask. The reason people turn it off is size: the flattened copy is a full-resolution picture on top of the layers, and it can make a large file noticeably larger.

How to tell that this is the problem

• The blank area is exactly the document’s size and it is white, not transparent and not a broken-image icon.
• A single-layer PSD, or one flattened before saving, shows correctly in the same viewer. Only files with layers go blank.
• Photoshop itself, and programs that build the picture from the layers (Photopea, GIMP, Affinity Photo), show it properly.

Inside the file, the flag is image resource 1057, the version information record, whose first field after the version is hasRealMergedData. When it is 0, the image data section is a placeholder. That one byte is the whole difference between the file that works everywhere and the one that shows white.

Fix it in Photoshop

1. Set File Handling’s compatibility choice to Always.
2. Open the PSD and use File → Save a Copy (or Save As) to write a new file. Capture One’s support pages, which see this problem from the other side, note that changing the setting and saving the same file again does not add the flattened copy; a new save does. That is why people report that the fix "did nothing".
3. Check the new file in the viewer that showed white.

If whoever sent the file uses Photoshop, asking them to do this is the quickest route, and it fixes the file for everybody who opens it after you.

See it without Photoshop

Open the file in PSD. It reads the header, the layers and the version record, and when the record says the flattened copy is a placeholder it draws the picture from the layers instead and says so under the picture. It lists every layer with its name, opacity, blend mode and any text it holds; untick one to see the picture without it, and save the picture or any single layer as a PNG. The file is read in the tab and not sent anywhere.

Be clear about what that drawing is. PSD flattens with normal blending and each layer’s opacity. Layers set to Multiply, Screen and the other blend modes, layer styles such as drop shadows, masks and adjustment layers are drawn by Photoshop’s own engine and are not reproduced, so a design built on them will look different, and the page says when it is showing its own flattening. The layers themselves, a logo on its own layer for instance, come out exactly as stored.

It also refuses, by name, what it cannot read: PSB large-document files, 16- and 32-bit documents, and CMYK, Lab and indexed colour. For those, Photoshop’s Image → Mode converts to 8-bit RGB, or Photopea opens them.

We checked this on a two-layer PSD written with a white placeholder and the flag set to 0, as Photoshop writes one with the setting off. Before this guide was written, PSD showed that file as white, like every other viewer; writing it found the fault, and it now draws the red background and blue box from the layers and names the setting in its status line.

Opening and looking is free. Saving a picture or a layer out of PSD is part of OBSCURA Pro, or US$1 to save from one tool for a day.