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Reflow

Reflow is the shifting of prose across line boundaries that occurs whenever structural or visual adjustments (such as resizing characters, modifying stroke thickness, or switching typefaces entirely) alter the spatial footprint of the text.

Reflow shown in Singel: the same passage set regular and then bold at an identical measure marked by pink rules, the heavier setting pushing words onto an extra line as the text re-wraps.

This term identifies the shifting of prose across line boundaries that occurs whenever structural or visual adjustments (such as resizing characters, modifying stroke thickness, or switching typefaces entirely) alter the spatial footprint of the text. In physical print layouts, this behavior poses a severe disruption once a document has been finalized, often resulting in content getting severed or hidden because it spills past the edges of its designated print frames.

On the other hand, digital and screen-based environments approach this fluidity with far less rigidity due to the infinite variety of display sizes, which naturally dictate how many words fit across any single line. This digital flexibility can still introduce layout issues, such as an extended headline unexpectedly expanding across several lines on compact mobile displays and pushing primary content further down the screen. Ultimately, sound design principles require layout architectures that gracefully accommodate this movement while utilizing responsive styling techniques to keep the composition balanced and highly functional across all mediums.

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About the author
Iveta Stoyanova

Iveta is the Social Media & Community Manager at Fontfabric. With a background in Rhetoric & Speech Communication, she writes about the human side of typography, the inspiration behind new typefaces, choosing the right font for your project, and font licensing.