Photoshop supports a maximum pixel dimension of 300,000 by 300,000 pixels per image.
Pixels per inch.
Yes.
Replacing and blending pixels at same time.
Dodging is lightening pixels, Burning is opposite.
Filter -> Blur
Its the amount of pixels per inch
Photoshop is an image editing program. Resolution is the term used for how dense an image is pertaining pixels. Photoshop can handle any range of resolution as long as the computer has enough speed and enough RAM (Random Access Memory) to handle large resolution images. Within Photoshop, resolution refers to pixels per a measure of length. In the US, it is usually measure as pixels/inch. In Europe, pixels/centimeter. A pixel is the smallest "part" of an image, so higher the pixel/inch gives the image more detail and "crispness."
To clone means to replace pixels on area where you paint with pixels from sampled (source) area (first you must choose source area).
clone stamp
The size of banner design in Photoshop is 851 width and 351 height in pixels You can also used 2667 width and 1617 hight pixels but basically on Pixallab, click the link below to see this banner size
Wrap option in Photoshop allow you to distort pixel based and vector objects. This option is mainly present in Photoshop for curvature distortions of pixels, text or vector shapes.
The Single Row Marquee Tool.