Convert JPG images to PNG
NetroDoc decodes a JPG image, applies available EXIF orientation, and writes the pixels in PNG format.
The PNG is saved with optimization enabled. Converting an existing JPG to PNG cannot restore detail already lost through JPEG compression.
How to convert JPG to PNG
Upload your file
Choose a compatible file or drop it into the NetroDoc workspace.
Choose JPG to PNG
Start the conversion action shown for the selected file.
Download the result
NetroDoc creates the converted file and starts the download.
What happens during JPG to PNG conversion?
JPG and PNG use different image encodings, so the source image is decoded and then written again in the target format.
Available EXIF orientation is applied before the output is saved.
PNG uses lossless encoding, but converting from JPG does not recover details that were already removed by earlier JPEG compression.
When is this conversion useful?
Format compatibility
Use PNG when a website, app, or upload field specifically expects that format.
Consistent projects
Convert images when a project standardizes on PNG.
Editing workflows
Use PNG when your image tools or workflow prefer that format.
Sharing and storage
Choose PNG when its format characteristics better match how the image will be used.
Temporary file processing
The uploaded file is processed in a temporary working directory on the NetroDoc server. The current conversion pipeline does not intentionally send the uploaded file to a third-party conversion service or cloud API.
The temporary working directory is removed after the response is sent, and it is also removed when validation or conversion fails. No account is required.
Privacy →JPG to PNG FAQ
Does NetroDoc apply EXIF orientation?
Yes, available EXIF orientation is applied before output is saved.
What is the image-size limit?
Images are limited to 80 million pixels in total.
Does conversion improve original image quality?
No. Format conversion cannot recreate image detail that is already missing in the source.
What happens to transparency?
A normal JPG has no alpha transparency channel, so converting JPG to PNG does not create real transparent areas.
How is the output encoded?
PNG is saved with optimization enabled.