Your PDF was exported with default Word margins — 2.54 cm everywhere. The printer wants 1 cm. The binder wants extra inside margin. The screen looks like it has too much whitespace.
Margins on an exported PDF are baked in. But you can adjust them after the fact by cropping or scaling.
Decide what "margins" means here
Two different operations. Cropping trims the page to a smaller size — useful when the existing margins are too wide. Scaling keeps the same page size but shrinks the content within it — useful when you want the content untouched but the page bigger.
For most cases, cropping is what you want.
Crop the margins
Open the file in Flint's editor and choose the crop tool. Drag the crop box to the new margin lines, or enter exact values (mm or inches).
Apply to all pages at once. Mixed-margin documents look unfinished — keep the crop consistent across the whole file.
Add a binding margin
For files that will be printed and bound, the inside margin needs to be wider than the outside (about 5-10mm extra). Use the editor's asymmetric margin tool — different left and right offsets for odd and even pages.
Test by printing a few sample pages folded and held in your hand. The text should be readable without forcing the spine open.
FAQ
Can I crop a PDF without losing content?
Yes, as long as the area you crop is whitespace. The editor warns if you try to crop into text or images.
Will scaled content still print at the right size?
Yes. The page size stays the same; only the content within it shrinks. Useful when you want larger margins without rebuilding the layout.
Why do printed PDFs always have unwanted margins?
Some printers add their own margin on top of the file's. Set your printer to "actual size" or "no scaling" to print to the edge.
Can I have different margins on different pages?
Yes — apply different crops to different page ranges. Useful when the cover page should fill the full sheet but inside pages have margins.
Margins are something you can adjust in 60 seconds without going back to the source. Open the file in Flint's editor and crop to taste.