Convert HEIC photos to PNG images
PNG is a broadly supported lossless image format that is useful when you want to avoid adding another lossy compression step after decoding a HEIC photo.
NetroDoc validates the HEIC image, applies orientation metadata, and writes a new PNG while keeping supported RGB or alpha image modes.
How to convert HEIC to PNG
Upload the HEIC photo
Choose a single-image .heic file.
Convert to PNG
NetroDoc validates the source and applies EXIF orientation before encoding PNG.
Download the PNG
Save the converted PNG to your device.
HEIC and PNG use different storage methods
HEIC may already contain lossy-compressed photo data. Converting it to PNG does not restore details that were lost in the HEIC encoding, but PNG itself does not add another lossy compression stage.
The output is a new raster file. Embedded HEIC container features that are not part of the decoded image are not carried into the PNG.
When to choose PNG
Editing workflows
Use PNG when a tool accepts PNG but not HEIC.
Graphics with transparency
PNG can preserve an alpha channel when the decoded source exposes one.
Avoid another lossy encode
PNG is useful when you do not want to re-encode the decoded pixels as JPEG.
Temporary server-side processing
The uploaded image is processed in a temporary working directory on the NetroDoc server. This conversion does not intentionally send the image to a third-party conversion or cloud API.
Temporary working files are removed after the response is sent or when processing fails. No account is required, and the original upload is not modified.
Privacy →HEIC to PNG FAQ
Does PNG improve the original HEIC quality?
No. It preserves the decoded pixels without adding another lossy compression step, but it cannot restore information already lost in the source.
Are multi-image HEIC files supported?
No. NetroDoc rejects them so extra images are not silently discarded.
Can the PNG be larger than the HEIC?
Yes. PNG is lossless and photo content can produce a much larger file than HEIC.