Add screenshots to start a composite.
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Join overlapping screenshots into one clean image. Trim repeated headers, adjust overlap and alignment, and export original working pixels or a paginated PDF.
Step by step
01Start with the source
Add up to twelve screenshots from your device. Remove the sample images first when starting a real job, then arrange the screenshots in reading order. Images are decoded locally, with a working limit of 4000 pixels on the longest edge.
02Edit and inspect
Select an image to trim its leading or trailing edge, remove repeated browser chrome, and set how many pixels overlap the previous image. Adjust the cross-axis offset when captures were taken at slightly different horizontal or vertical positions.
03Export and verify
Inspect the whole composition and download a PNG at the reported working dimensions. PDF output divides the image over A4 pages at a consistent width. Later images cover earlier images in the overlap, so check important text near every seam.
Why this one
Manual alignment is predictable
The stitcher does not invent missing content or guess where images belong. Matching visible repeated text or landmarks gives you control over the seam. Cropping and overlap are separate settings: trim removes pixels from a capture, while overlap controls where the remaining image begins.
Native working pixels
PNG export composites the decoded images at the exact reported width and height. It does not take a screenshot of the scaled browser preview. Large source images are reduced to the working edge limit before editing; a larger original cannot be recovered from that reduced working copy.
Paper is a second output
A very tall image is useful for digital sharing but awkward on a single paper page. The PDF export splits it over ordinary A4 pages instead of creating an enormous custom page. The image remains raster artwork, and the result does not gain searchable PDF text.
FAQ
The screenshot stitching editor uses manual trim, overlap, and alignment controls. It does not use AI or infer missing image content.
The screenshot stitching editor supports both vertical long screenshots and horizontal compositions. Leading and trailing trims follow the selected direction.
The screenshot stitching editor allows up to 12 inputs, a 16,000-pixel output edge, and 32 million output pixels. Each source has a 4000-pixel working edge limit.
The screenshot stitching editor writes a new flattened PNG containing the visible composite. Cropped source content and original metadata are not embedded as removable layers.
Files and project content are processed on this device. No AI tokens or third-party processing API are used. Share links include settings only; source files and private project content are excluded. Downloaded projects are ordinary local files that you choose where to store and share.
Keep going
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