In the graphic design and printing industries, resolution is everything. If you want to know the measurements of A8 in pixels you must first find out the resolution of your file:
For a resolution of 300 dpi, you will get 614 x 874 pixels per inch.
For a resolution of 200 dpi, you will have 409 x 583 pixels per inch.
For a lower resolution of 72 dpi, you will get 147 x 209 pixels per inch.
The more pixels per inch (PPI) there are, the more information there is in the image, which will improve the precision and overall quality of the result.
The dimensions of the formats presented in the table preserve their proportions between width and height. The width of A8 size paper is equal to the length of the A9 size paper and the length of A8 is equal to the width of A7.
One sheet of A8 size paper is the same as:
This correlation between the formats in the A range of paper was first outlined in 1786 by the German scientist Lichtenberg. in 1922 that the aspect ratio of √2 was taken up by Porstmann and the German DIN 476. It is this formula that guarantees the preservation of proportions between sizes.
A8 size paper is among the smallest sizes of printable paper in the A range and, as such, is unable to convey a lot of information. However, if it is used well, A8 can be a very effective way to communicate.