Most of the time the print settings, not the PDF, are changing it: “Fit” or “Shrink oversized pages” scales it down, and a page size that doesn’t match the paper gets cropped or shrunk. Print at “Actual size” on matching paper first. Missing fonts, forms and black boxes come from the file itself.
1Print at actual sizeIn the print dialog, choose “Actual size” or 100% instead of “Fit” or “Shrink oversized pages”. This alone fixes most prints that come out smaller than expected.
2Match the page size to the paperCheck the page size in the PDF’s properties. If it isn’t your paper size, Resize PDF puts every page on A4 or Letter so nothing is cropped or shrunk unexpectedly.
3Include form fields and commentsIn Acrobat set “Comments & Forms” to “Document and Markups”. Or flatten the file so they become part of the page and print everywhere.
4Print as an image if you get black boxesMost print dialogs have an advanced “Print as image” option. It sends a picture of each page, which sidesteps transparency the driver can’t handle.
5Check the fonts if the lettering changesOpen document properties → Fonts. Anything not marked “Embedded” is being substituted; the fix is to re-export from the original with fonts embedded.
Why does this happen?
The printer scales the page. “Fit to printable area” or “Shrink oversized pages” shrinks everything so it clears the printer’s margins, which is why a PDF prints smaller than on screen.
The page size doesn’t match the paper. An A4 PDF printed on US Letter, or the other way round, is either cropped at the edges or shrunk to fit — both look different from the screen.
The fonts were not embedded. A PDF that refers to fonts instead of carrying them is drawn with substitutes, and the printer’s substitutes can differ from your screen’s.
Transparency and layers confuse the printer. Shadows, soft edges and overlapping layers have to be flattened for printing; some printer drivers get it wrong and print black boxes or solid backgrounds.
Comments and form fields are left out. Form answers, stamps and comments sit on top of the page. If the print dialog is set to print the document only, they vanish from the paper.
Screen colors aren’t printer colors. Screens mix light (RGB) and printers mix ink (CMYK). Bright blues, greens and oranges on screen often come out duller on paper.
Questions
Why does my PDF print smaller than the original?
The print dialog is scaling it. “Fit to printable area” and “Shrink oversized pages” make room for the printer’s margins. Choose “Actual size” or 100% to print it at its real size.
Why does my PDF print with black boxes or a black background?
The page uses transparency the printer driver can’t handle. Try “Print as image” in the advanced print settings, update the printer driver, or print from a different reader.
Why is my PDF printing blank pages?
The content is usually in form fields or annotations the print path skips. Include “Document and Markups” in the print dialog, or flatten the PDF so everything is part of the page.
Why are the colors different when I print a PDF?
Screens display RGB light, printers lay down CMYK ink, and some bright screen colors have no ink equivalent. A print preview with color management on, or a proof print, is the only reliable check.