Image order becomes PDF page order
Arrange photographs or scans before conversion. File pickers may return names in an unexpected order, especially when numbers are not zero-padded. A visual source list is safer than relying on filenames alone.
- Put cover and title images first.
- Check portrait and landscape transitions.
- Keep the source images unchanged.
Image-sized pages, A4, and Letter serve different purposes
An image-sized page avoids adding a paper canvas and is useful for screen viewing. A4 is common internationally; Letter is common in the United States and Canada. A fixed paper size makes printing predictable but requires Fit or Fill placement.
Margins and orientation affect cropping
Fit keeps the whole image and may leave empty space. Fill covers the available page area and can crop edges. Automatic orientation follows the page or image shape, while an explicit portrait or landscape choice can make a mixed set more consistent.
- Use margins when printers cannot reach the paper edge.
- Preview Fill carefully around faces, labels, and signatures.
Avoid recompressing JPG data when it is unnecessary
Embedding existing JPG bytes can preserve their current encoded quality. Decoding and encoding them again may introduce another generation of lossy artifacts. PNG transparency is different: a PDF can embed it, but viewers and print workflows may render transparent areas against different backgrounds.