Pro Lab Glossary: Photo Book Terms Explained

A quick reference guide to terms you'll encounter while creating photo books, albums, and prints at Pro Lab. Bookmark this page if you're new to professional photo printing.

A premium binding where pages open completely flat at 180°, with no gutter break across the spine. Ideal for panoramic spreads and the industry standard for wedding albums.

A rigid cover wrapped in premium materials (photo, designer fabric, signature leatherette, or acrylic). Durable and premium-feeling.

A lightweight, flexible cover printed with your photo. Budget-friendly and great for casual albums or multiple copies.

Two facing pages of a photo book viewed together. A 40-page book = 20 spreads.

The centre fold area between two facing pages. Layflat albums have no visible gutter.

The number of single sides in your book. Each spread is 2 pages.

A removable paper cover that wraps around a hardcover book for added protection and design.

Dots per inch / pixels per inch — a measure of image resolution. Higher means sharper prints. We recommend 300 DPI at print size for the sharpest results, with 150 DPI as the practical minimum.

Grams per square metre — a measure of paper thickness and weight. Higher GSM = thicker, more premium paper.

The extra area beyond the trim edge that gets cut off during binding, ensuring no white borders on photos that extend to the edge.

The width-to-height proportion of a photo (e.g. 3:2, 4:3, 1:1 square). Important when fitting photos into specific page layouts.

A professional photo printing technology used by Pro Lab for prints on Fujifilm Crystal Archive paper. Delivers superior colour accuracy and 75+ years fade resistance.

A premium fine-art printing method using pigment-based inks on archival paper, producing exceptional detail and 100+ years longevity. Ideal for fine art, photography portfolios, and gallery work.

Advanced multi-colour inkjet printing for large-format prints, offering wide colour gamut and smooth gradients up to 44x100".

Shiny, vivid colours and high contrast. Reflective.

Non-reflective, subtle, fingerprint-resistant, elegant.

A balance of glossy and matte. Popular with photographers.

A crystal-clear acrylic panel on the front of premium photo books and albums.

Premium vegan leather or rexine cover with optional embossed names and dates.

Premium fabric-wrapped cover with custom artwork. Elegant and sophisticated.

If any other term isn't clear, contact support@prolab.in or call +91 99803 99806 and our team will explain it.