Import Presentation Video
Drag video files here, or click to browse.
Supports MP4, WebM and common web video formats.
Video Preview & Crop Area
Capture Area (Drag & resize corners)
00:00 / 00:00
Extraction Settings
Sampling Interval
1.0 s
Interval between frame checks. Smaller is finer, but takes longer.
Frame Change Sensitivity
10%
Pixel difference threshold to trigger a new slide. Lower is more sensitive.
Transition Buffer (Min Duration)
2.0 s
Minimum interval between slides to avoid transition animations.
Task Control & Progress
Ready
0%
Current Timestamp
-:--
Captured Slides
0 slides
[System] Ready. Please load a video and adjust crop area.
Captured Slides List
0 slides
Instructions & Guide
1. Crop Slide Region
Upload lecture or presentation videos. Drag the bounding box on the video preview to crop solely the presentation slide area, avoiding speaker webcam overlays.
2. Smart Slide Detection
Employs image difference algorithms to automatically detect slide transitions while ignoring minor video artifacts and cursor movements.
3. Fast Local Processing
Runs 100% locally in your browser via HTML5 Canvas. Your confidential corporate presentations and lecture videos are never uploaded to any cloud server.
4. Export to PDF Handout
Review captured slide thumbnails, delete duplicates, and export the entire deck as a high-resolution compiled PDF handout or image ZIP archive.