Bleed box refers to the region to which the contents of the page should be clipped when output in a production environment, usually the bleed box is 3 to 5 millimeters larger than the Trim Box. Surely, you can edit your pdf bleed box to achieve sound visual effect, in order to let you do this swiftly, the VeryPDF. com offers you a quick way to edit pdf bleed box by using Advanced PDF Tools Command Line. A great help to edit pdf file.
Step 1 click the following link to download Advanced PDF Tools
https://www.verypdf.com/pdfinfoeditor/advanced_pdf_tools_cmd.zip
please unpack it when download is completed.
Step 2 launch the MS-DOS command prompt window. Because the command line is bound to be operated under the MS-DOS environment. The procedure is easy, and the following pictures will guide you.
1) click “start” and then go to “Run”
2) input cmd into the following
3) press “ok”, you will find MS-DOS command prompt window propping up
Step 3 input command line to edit pdf bleed box
pdftools -i “C:\input.pdf” -o “C:\output.pdf” –X "Bleed:0 0 800 800"
where the option -i is to specify a pdf file name or a directory for input, the option -o to specify the pdf file name for output, and-X is to remove or set Crop, Bleed, Trim, Art boxes, here "Bleed:0 0 800 800" means editing bleed box in form of changing page size
when the input is done, press “enter” key, you will see
Step 4, open the files to check, you can find the subtle change of the two pictures below
NOTE, Trim box: the intended dimensions of the finished page after trimming. The default value is the page's crop box.