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Camera RAW requires full image development. This browser engine does not implement it yet.
Pentax PEF needs camera- and file-aware development to produce a rendered PNG image. White balance, exposure, camera colour interpretation and, where applicable, demosaicing determine that rendering. The destination does not retain the original RAW development latitude. No development settings or camera support are implemented yet.
The target can store an alpha channel, but converting an opaque image does not create transparent areas. Removing a background is a separate editing step.
PNG compression is lossless. Palette conversion, resizing or reducing bit depth before encoding can still discard information. Animation is the APNG extension included in the third edition. PNG can store its supported image samples without lossy compression. This applies after rendering and sample conversion: it does not guarantee preservation of source precision, colour space or document structure, and cannot undo earlier losses.
Source
Pentax Electronic File
Pentax native raw images; compatible cameras may offer PEF or DNG recording.
Explore Pentax PEF format →Target
Portable Network Graphics
Lossless raster images with precise edges and optional transparency. The PNG standard also defines APNG animation.
Explore PNG format →Pentax PEF needs camera- and file-aware development to produce a rendered PNG image. White balance, exposure, camera colour interpretation and, where applicable, demosaicing determine that rendering. The destination does not retain the original RAW development latitude. No development settings or camera support are implemented yet.
The target can store an alpha channel, but converting an opaque image does not create transparent areas. Removing a background is a separate editing step.
PNG compression is lossless. Palette conversion, resizing or reducing bit depth before encoding can still discard information. Animation is the APNG extension included in the third edition. PNG can store its supported image samples without lossy compression. This applies after rendering and sample conversion: it does not guarantee preservation of source precision, colour space or document structure, and cannot undo earlier losses.
Source and target sample models can differ in precision, channel layout, colour space and transfer function. Lossless compression only preserves the samples actually encoded; a precision reduction or colour conversion can already change them. The future engine defines numeric mapping, orientation and colour conversion; canonical depth facts are listed below where available.
Pentax PEF: Capture metadata → PNG: Exif, ICC, Text. Which fields are copied, rewritten or omitted will depend on the future engine; retention is not implemented yet.