Because a piece of paper can be printed on both sides, two prints are regarded as a whole. A ream of paper is 500 sheets, and a thousand sheets are a ream of paper.
2. folio refers to the size of the book layout. The size of the whole book is expressed by the number of sheets cut on the whole paper.
Cut a whole piece of paper into 16 small pages with the same width, called 16 pages, cut into 32 small pages called 32 pages, and so on. Because the specifications of the whole base paper are different, the sizes of the small pages cut out are also different.
Extended data
1, table calculation
(1) printed sheet calculation method: the number of faces divided by the number of pages;
(2) The concept of total pages, such as preface, table of contents, index, appendix, postscript, etc., is the same as the text. If it can be printed with the text, it should be included in the total pages;
(3) If there are decimals when calculating the number of printed sheets, and the number of printed sheets is relatively small (for example, when there are only 1,000 sheets), it is generally necessary to carry forward the zero pages with less than one printed sheet according to the principle of even number (accounting for four page numbers), so as to facilitate printing and binding.
16 to 0.25, 0.5, 0.75; March 32 to 0. 125, 0.25, 0.375, 0.5, 0.625, etc.
However, when the printing quantity is so large that the cost of paper accounts for about 50% of the cost of books and periodicals, this method should not be adopted, because the printing and binding costs that can be expected to be saved at this time are not enough to make up for the increase of paper cost.
2. Layout size
The standard paper size is 787× 1092(mm). The size of large paper is 889×1194 mm.
* Finished product size = paper size-trimming size
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