Make the grid readable
Choose fewer columns when you need to compare faces, expressions or fine differences between shots. More columns give you a compact overview, but each thumbnail becomes smaller. Leave enough margin for your printer and check the resulting page count. A contact sheet is a selection aid: it should let you identify a picture quickly rather than replace a full-size photograph.
Prepare your set
Select a coherent batch before opening the tool, such as one photo session or a group of product options. Check the displayed order and remove unwanted images before exporting. Each source file must be no larger than 20 MB or 30 megapixels. Very large source files can use substantial browser memory even when their file size looks modest, so work in smaller batches if your device struggles.
For a clear review sheet, choose readable thumbnails and file order before exporting.
Understand the PDF output
Images are resized and compressed for the contact sheet output. Keep the original files for final editing and printing; the PDF is not an archive of full-resolution originals. Open the downloaded PDF, check that every intended image is present and print one page first. If you want to divide a single image into independent files, use the image splitter. For one large assembled picture, choose the poster maker.
Print photos with their filenames
Enable filename labels when the sheet needs to act as a photo index. Sort by filename for a numbered sequence, or move individual images to group alternatives together. Choose two to five columns and inspect every page: fewer columns give larger thumbnails and may need more pages. If a label is hard to identify, use a shorter filename on a copy of the original or reduce the columns before exporting.
File and layout limits
Per image: 20 MB, 30 megapixels and 30,000 pixels on either side. Up to 24 photos, with 2–5 columns and 5–25 mm margins. Images are reduced and compressed for the PDF; keep the original files.
References & further reading
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