PNG and JPEG serve different needs
Capture frames are lossless PNG and are stitched before the final image is encoded. PNG keeps pixels without JPEG compression and is useful for text-heavy interfaces. JPEG can make photo-heavy results smaller, at the cost of compression artefacts.
Editing intermediates and annotated image exports use PNG to avoid repeated lossy compression. A screenshot exported as a PDF is a different Pro workflow and remains image-based rather than searchable text.
Choose and inspect the output
- Choose the image format in the capture settings before taking a new screenshot.
- For JPEG, select the desired quality and inspect small text after capture.
- Make edits in the viewer and download the result you intend to share.
- Open the saved file and check its resolution, annotations and private details.
Automatic copy is optional
Automatic Copy asks for the optional clipboard-write permission when selected. It does not request permission to read your clipboard. If you decline the automatic-copy permission, manual copy in the viewer remains available.
Clipboard contents can be pasted into other applications. Review the result before using it in a shared document or message, especially if the source page contains personal details.
A worked example
A screenshot contains small labels and a photograph. Begin with PNG for the text-heavy result, then compare a JPEG if file size matters. Open both at actual size and check label edges, arrows and coloured text. The JPEG quality setting applies to JPEG compression; it does not improve source pixels or missing page content. Clipboard output is PNG and needs the user-initiated permission flow. If a destination cannot accept an image paste, use the downloaded file instead.
Add your observations. This template processes no files and sends no report.
Check the result
If something is wrong
| Observation | Next step |
|---|---|
| JPEG text has artefacts | Use PNG or compare a higher JPEG quality on the actual saved file. |
| Copy fails | Use the explicit Copy action and permission prompt; download if the destination still cannot accept the image. |
| Higher quality changes nothing important | Check source resolution; encoding quality cannot restore missing detail. |
Common questions
Does FullPageShot read my clipboard?
The optional permission is clipboardWrite. The extension does not request clipboard-read permission.
Why did editing produce a PNG?
Annotated image exports use PNG so repeated edits do not introduce additional JPEG compression losses.