Does the subject want to ask, "The printed pdf file is a blank page, why?" ? Print area is inaccurate, ink is missing, fonts are not embedded, and files are protected.

1. Inaccurate print area: When printing a pdf file, the correct print area was not selected, resulting in incomplete print content and blank pages.

2. Insufficient ink: If the ink in the printer cartridge is insufficient, you will not be able to print.

3. Fonts are not embedded: If some fonts in the PDF file are not embedded in the file, a blank page will appear when printing.

4. File protected: If the PDF file is password protected or has limited editing rights, it cannot be read, resulting in blank pages when printing.