Adjust timing
Preview a fixed offset or two-anchor drift correction, then export a new file.
Subtitle source
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Result & preview
Constant delay or gradual drift?
A fixed offset adds the same time to every cue. Two anchors fit a linear scale and offset. Neither method repairs a video with different edits or missing scenes.
Nothing disappears silently
The default stops when a timestamp would be negative. Trim and drop are deliberate alternatives, with every removal or trim listed in the report.
Preview before replacing
The table shows the first 30 cues. The exported new file includes all retained cues; compare it with the original and check the final player.
Work through an example
A fixed subtitle delay and subtitle drift need different adjustments
Measure two anchors before deciding whether an offset or a linear retiming is appropriate.
Read the guide →Practical guideA practical handoff checklist for a subtitle file
Separate structural checks, content review and final playback before handing a file to another person.
Read the guide →