How to crop a screen recording to vertical and keep the text readable
Upload the screen recording and tell Vizard Agent the text has to stay readable. Vizard Agent tests candidate vertical crops against the actual frames, checks whether lines are being cut off, tries excluding the browser chrome so the content sits larger, and trims the slow stretches.
What do you type into Vizard Agent?
Say the crop and the legibility requirement together. Vizard Agent otherwise centres the crop, which is the reasonable default and is usually wrong for a screen recording, because the content people care about rarely sits in the middle of a desktop. Add whether the slow parts should go.
Prompt
What does Vizard Agent actually do?
A crop chosen on a single frame looks fine until the page scrolls and the text shifts sideways out of the region. Vizard Agent compares several moments during the scroll before fixing the frame, and tries cutting out the browser furniture, which lets the document fill more of the vertical frame. In the session behind this article it:
- Checked the duration of a 1920x1080 recording at about 24fps, 31.55 seconds long, and extracted overview frames to see where the text sat.
- Found the speech and the long pauses in the audio, and checked whether there was any useful audio so the track would not be left empty.
- Looked closely at the key scrolling and screen-change moments, then chose a safe vertical region from detailed frames and refined where the page sat in the original.
- Compared where the text moved during scrolling before fixing the focal area, and tested a wider left-weighted crop so lines began complete.
- Tested a crop that excluded the browser chrome and the taskbar so the document sat larger, assembled the vertical version with the pauses shortened, then corrected the output to exactly 1080 by 1920 and rebuilt it.
When does this not work well?
Cropping a wide screen down to a narrow one discards most of the width, and some interfaces genuinely need all of it, like a spreadsheet or a timeline. Small text stays small, because cropping doesn't add resolution, and content that scrolls sideways escapes a fixed crop. A capture recorded vertically needs no crop at all.
Common questions
Can it drop the browser bars? Yes, and it usually should. Vizard Agent tested exactly that on this run.
What if the page scrolls sideways? A fixed region will fail there. Vizard Agent compares scroll positions and reports the problem.
Does it trim the slow parts? If you ask. Vizard Agent locates the pauses in the audio rather than guessing at them.