The snipping functionality of the macOS standard app Preview is straight forward and pretty easy to use. Preview mini brings this feature to your iPhone and iPad.
At first you have to select the snipping mode by tapping the scissor iconed button in the upper right corner of the toolbar. In this mode you are able to copy or cut parts from the image into your clipboard and paste it into another one. Select the regarding image part by dragging from one edge to the other. The size of the selected frame is shown in the pixel pill.
A moveable and resizable frame is added to the screen. Now you can fine-adjust your choice. The four blue dots should be quite familiar and self-explanatory. The orange dot in the upper left corner is used for ratio-based resizing. You can enable or disable the auto-ratio as you like.
By tapping the selection a menu appears, which offers you three options:
- Cut out the selected frame and save it in the clipboard.
- Copy the selected frame and save it in the clipboard.
- Crop the whole image to the selected frame.
Paste your selection afterwards by a longpress at the position you want to put the cached image part to. If you want to put it to another image just select or import the target one in the left sidepanel and do exactly the same as described above.