PJPEG to PSD Converter
FileFlip converts PJPEG to PSD entirely inside your browser, using ImageMagick compiled to WebAssembly. The file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. That means no file-size limit, no queue and no account.
How do I convert a PJPEG file to PSD?#
- Drop your PJPEG file onto the converter at the top of this page, or click it to pick one from your computer. You can add as many as you like.
- Leave the target set to PSD and the conversion starts on its own. FileFlip downloads 14.1 MB of WebAssembly the first time and nothing after that, then runs ImageMagick on your own machine.
- Save the PSD file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting PJPEG to PSD lose quality?#
PSD is a lossless format, so nothing further is lost here, but nothing is recovered either. Whatever the PJPEG encoder already threw away is gone, and the PSD file will usually be several times larger for exactly the same content.
Is it safe to convert PJPEG files online?#
Yes, because nothing is uploaded. FileFlip converts PJPEG files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What PJPEG to PSD actually does to the file#
Converting PJPEG to PSD runs on ImageMagick, downloads 14.1 MB of WebAssembly the first time and nothing after that, writes a lossless file that cannot recover what the source already discarded, keeps EXIF metadata and ICC colour profile.
| Engine | ImageMagick |
|---|---|
| Conversion path | One step: PJPEG → PSD |
| Downloaded to your browser | 14.1 MB, once, then cached by your browser |
| Quality | Lossless output, but nothing is recovered |
| You get back | One file |
| Where it runs | In a background worker, so the page stays responsive |
What survives the conversion
| What is in the file | This conversion | Why |
|---|---|---|
| EXIF metadata | Kept | Carried through into the converted file. |
| ICC colour profile | Kept | Carried through into the converted file. |
What is a PJPEG file?#
PJPEG is progressive JPEG, a JPEG encoding choice rather than a different file format, where the image is built up through several increasingly detailed scans across the whole picture instead of filling in top to bottom in one pass.
Choose progressive encoding for images shown over a slow or uncertain connection, where a quick blurry preview beats a slow top-down reveal.
Convert to baseline JPEG when a downstream tool or embedded device only supports the simpler sequential scan order.
What is a PSD file?#
A PSD file is Adobe Photoshop's native document format, keeping an image as a stack of independently editable layers, masks, adjustment layers and text objects instead of merging them into a single picture.
Keep a design as PSD while it's still being edited, so layers, masks and adjustment layers stay available for later changes.
Convert PSD to JPEG or PNG once a design is finished and needs to be viewed on the web or by someone without Photoshop, since flattening is what makes it viewable everywhere.
PJPEG to PSD questions people ask#
What is PJPEG?
PJPEG is progressive JPEG, a JPEG file encoded in a handful of increasingly detailed scans instead of one pass from top to bottom. It's still a JPEG file, just encoded differently, and opens anywhere JPEG does.
What's the difference between PJPEG and a regular JPEG?
A regular, baseline JPEG fills the image in from top to bottom as it loads. PJPEG encodes several scans of the whole picture, each adding sharper detail, so a rough version of the entire image appears almost immediately and refines as more data arrives.
Does progressive JPEG reduce image quality?
No, PJPEG uses the same lossy JPEG compression as baseline JPEG at a given quality setting, and often produces a slightly smaller file because each scan can use its own optimized Huffman table.
What happens to my layers when I convert a PSD to JPEG?
Converting a PSD to JPEG merges every layer into one flat plane, bakes layer masks and adjustment layers permanently into the pixels, and rasterizes any text so it's no longer editable. Paths and guides are dropped entirely, since JPEG has nowhere to store them.