When and How to Convert Images to PDF
Combine scans and photos into a portable document that is easier to share.
Converting images to PDF is useful when several scans or photos belong to one document. The conversion should improve organization without making pages unreadable or creating an unnecessarily large file.
Prepare source images
Rotate every image correctly, crop empty surroundings, and confirm that text is sharp. Use consistent lighting for photographed documents and avoid shadows across the page. Rename files with numbers when page order matters, such as 01-cover, 02-receipt, and 03-approval.
Choose page dimensions
A4 or Letter works well for reports and scanned forms; landscape is better for wide diagrams; square pages suit portfolios with square artwork. Add a modest margin when images must not touch the edge. Avoid enlarging small images because scaling cannot restore missing detail.
Balance quality and file size
High-resolution photos can produce a very large PDF. Resize images to the level needed for reading or printing, but inspect small labels and handwriting before reducing quality. Use consistent compression so one page does not look dramatically softer than the others.
Review the assembled document
Open the PDF, move through pages in order, and check page orientation, margins, and readability. Confirm that no private photo was selected accidentally. Add a descriptive filename and keep the original images until the recipient confirms that the PDF opens correctly.