Prepare the page
Open the webpage and let fonts and images finish loading. Scroll through content that appears only when you reach it, then open SnapSeal App from the browser toolbar. Close overlays you do not want in the image.
Choose the right capture mode
Choose "Whole page" for the scrolling webpage, "Visible" for the current view, "Select" for a particular element or scrolling panel, and "Crop" for an area you draw. Fixed headers, long lists that load as you scroll and infinite feeds may need a selected element or a clearly defined section. Results vary by website.
Check the result and add notes
Check for missing or repeated content at the top, at the bottom and where the captured sections meet. Open the editor to add arrows, notes or shapes and redact private details. When documenting a change, compare with an earlier capture saved in the extension’s history.
Copy or download the image
Copy the finished screenshot or download it as PNG, JPEG or WebP. PNG keeps text crisp; if you choose a smaller JPEG or WebP file, check the text is still readable. Open the saved file to confirm the crop and redactions before sending it.