Why convert a PSD to JPG?
Because almost nothing outside image editors opens a PSD. Phones, email, chat apps, websites and online print services take JPG. Converting gives you one flat copy of the finished image to share, while the layered PSD stays the file you edit.
How big will the JPG be?
It depends on the image more than on the quality setting. Measured on 2026-10-15 with this converter (MB is a million bytes):
| Test file | PSD | PNG | JPG 80 | JPG 90 | JPG 100 |
|---|---|---|---|---|---|
| Photo-like texture, 3,000 × 2,000 | 36.0 MB | 7.8 MB | 0.74 MB | 1.19 MB | 3.88 MB |
| Flat CMYK layout, 3,300 × 5,100 | 2.3 MB | 0.14 MB | 0.53 MB | 0.55 MB | 0.67 MB |
For the photo-like texture, a noisy pattern standing in for a photo, JPG at 90 was about a sixth of the PNG. For the flat-colour layout, PNG was smaller than any JPG and keeps edges sharp, so the PSD to PNG converter is the better choice there. The texture was generated with ImageMagick’s plasma pattern; the print layout is a Photoshop sample from the psd-tools test suite.
What changes between the PSD and the JPG?
| PSD | JPG from this converter | |
|---|---|---|
| Layers | Kept | Merged into one image |
| Transparency | Kept | Filled with white |
| Colour mode | RGB, CMYK, Grayscale, Lab and others | RGB |
| Bits per channel | 8, 16 or 32 | 8 |
| Colour profile | Embedded | Kept for RGB files; left out after a CMYK or Lab conversion |
| Resolution (dpi) | Saved | Saved, so the print size is the same |
| Compression | Lossless | Lossy, at the quality you pick |
| Largest side | 30,000 px (PSD), 300,000 px (PSB) | 65,535 px |
The PSD limits are from Adobe’s file format specification; the JPG limit comes from the 16-bit width and height fields in the JPEG standard.
Is it the same image Photoshop shows?
Yes, for files saved with Maximize Compatibility on, the option Photoshop offers when you save a layered PSD. The JPG is made from the merged image Photoshop stored in the file, so layer effects, adjustment layers and text look exactly as they did in Photoshop at the last save. If that option was off, the converter rebuilds the image from the layers and says what it could not draw.
How it was tested
Tested on 2026-10-15 in Chrome 148 on a laptop with an Intel Core i7-14700HX. Saving a 6,000 × 4,000 px JPG took between 1.2 and 2.6 seconds, and a 3,300 × 5,100 px CMYK file saved by Photoshop came out as an RGB JPG in about 1 second. ImageMagick 7.1.1 read that JPG back as an sRGB image of the right size, with the saved 300 dpi and full-resolution colour (1x1 sampling).