Formats
JPEG, PNG/APNG, GIF, WebP, multi-page TIFF, BMP, HDR, EXR and more; JPEG XL, PSD, DICOM, SVG (no external resources), HEIC/AVIF through the system decoder and camera RAW files actually developed (tested on Nikon NEF and Fujifilm RAF). Animations with their timing.
View, loupe and measurements
The photo fits the window and follows it when it changes; zoom around the cursor, pixel grid, 2× to 32× loupe, distance and angle measurement, rotations and flips of the view only. Colour inspector under the cursor in HEX, RGB, HSL, CMYK, CIELAB, with the exact count of distinct colours.
Histogram over every pixel
Of the image or the selection, linear or logarithmic, with minimum, maximum, mean, median and standard deviation per channel and the clipped pixels at 0 and 255.
Cropping without altering
Lossless PNG with the original pixels and bit depth, or JPEG without recompression: the DCT blocks are copied, no quality loss. Next to the crop a provenance .json file with source file, coordinates, method and hashes. The original is never overwritten.
Data a common viewer does not show
Trailing data after the image (a file appended past the end is found and named), dates compared across EXIF, GPS, XMP and file system with inconsistency findings, embedded images with their distance from the image, JPEG structure, programs and XMP history, perceptual hashes.
C2PA: does the manifest belong to this file?
Signature, certificates, declared actions and the full manifest tree, cloud manifests included. Above all the binding to the file: the hash declared in the manifest is recomputed over the image bytes. A valid signature on a photo modified after signing comes out as “does not match”.
Forensic maps overlaid
ELA, JPEG Ghost, residual noise and duplicated regions (copy-move within the same image), with adjustable opacity. The duplicate search is tuned not to raise false alarms on repeated textures: zero on fifteen real test photos.
Comparison and PDF report
Two images in the same window: side by side with synchronised zoom, wipe, overlay, amplified difference, alternation, with differing pixels and PSNR. The “Image details” report gathers technical data, C2PA, GPS map and the work done in the window, with crop hashes re-checked at print time.