File management:

Automatic creation of a copy of the file when opened for subsequent processing (non-destructive editing). The original photo remains unchanged
Support for all popular file types, including all RAW
Fast Browser
Rotation, copy, delete, move, rename operations
Full EXIF and IPTC information
Support for color profiles

Noise reduction:

Automatic detection of noise level
Selective noise reduction in lights and shadows, at a certain shade, in the color range
Filter of broken pixels and dust on the camera sensor
Noise map

Brightness:

S-brightness curve or brightness equalizer (ability to adjust brightness in a narrow range)
Gradient haze compensation
Brightness in Lights, Shadows
Contrast, Gamma, Exposure
Local contrast
Levels (black dot, white dot)
Adjustment of the size of the filter application areas
Exposure warning showing out of range in lights and shadows

Colors:

Setting white balance by gray and other color
Active RGB color map and sliders for manual white balance adjustment
List of memory colors (skin types, greenery, sky, etc.)
Separate saturation for bright and pastel colors
Equalizer for selective saturation
Spectral-sensitive hue controls
A large set of adjustable black-and-white conversion mechanisms
Exposure warning

Aberration:

Elimination of chromatic aberration in high-contrast areas (e.g. sun behind trees)

Sharpness:

Fine detail selection
Sharpening the borders
Setting a threshold that prevents the sharpness of noise
White and black halo control (border edging)
Equalizer to sharpen only the selected color range

Distortion:

Correction of vignetting (darkening or lightening of the corners of the frame)
Correction of convexity/concavity
Perspective correction
Rotation, compression, stretching
Slope, bend

Crop/Resize:

Pre-set popular paper sizes, monitor resolutions, mobile phones
Proportional selection (e.g. 2:3, 3:4, user defined)
The mechanism for finishing the image in the corners when turning

Frames:

A mechanism for quickly forming frames
A large set of frame types and parameters
Capturing a color for a frame or selecting from a palette

Retouching:

Brush 'Remove defects' to remove defects, wires, pimples on the face, etc.
Brush 'Clone ' (analogous to Photoshop)
Brush 'Change Brightness' to change brightness locally
Brush 'Change color' to paint with color or change the shade locally
Brush 'Change Saturation'
Brush 'Blur/Sharpen'
Brush 'Correct noise'
Brush 'Eliminate "red eyes" '
Brush 'Deform ' to correct protruding ears, facial expression, volume and shape of bust, figure, and other similar problems
Brush 'Erase changes' to locally remove the effect of brushes and/or filters applied earlier
All brushes can be sensitive to borders and change the stiffness (intensity from the center to the edge)
Cancel function/Repeat

Save:

The image can be saved in a computer, sent by e-mail, printed, published on the Internet
JPEG, JPEG2000, TIFF (24 bit, 48 bit, lzw compression), PNG, PSD, BMP formats are supported
The save dialog shows the file size for the specified quality and format