As a system-wide universal format, PDF is compatible across platforms. You can create from any source applications, compact small and transfer in internet securely. All the advantages make PDF files popular in most book printing services companies.
Here we list some standards for a job of book printing PDF.
1). The page size of digital files must consistent with finished products.
2). Digital files should consistent with laser proofs provided including page numbers, size and colors.
3). The bleeding 3mm generally of every page is necessary for most jobs.
4). Each page should be unified, including folio, printing area and page head-line.
5). Every element that can't be cut off must keep distance at least 5mm from edge.
6). The marks in PDF files are useful for our CTP workflows.
7). The line must be not thin less than 0.10mm and dot area coverage of color patch must be over 5%.
8). The superimposition is required if there are solid black texts, lines and color patches.
9). We recommend the print color space CMYK for all pages but not RGB or LAB.
10). All fonts and images must be embedded into the printing area.
11). All black texts must be done with superimposition.
12). 800DPI or above is required for bitmap image, but 300DPI or above is workable for CMYK and Grayscale images.
13). Please offer us high RES images together if OPI graphic link is applied to PDF.
14). Do not use PDF writer to generate PDF files directly from the application, most reliable PDF files are created from Post Script files.
For most book printing jobs, PDF files are popular with the designers. It can help to reduce the leadtime before printing, and save the checking time for book printing project manager.Image Printing will advise you how to create your artworks for a book printing job,for book printing quotes.
Book Printing PDF Format Artworks