The Universal Image Contact Sheet & Proof Sheet Studio on RiazHub is a powerful, privacy-first, client-side digital workstation built for photographers, art directors, digital archivists, and content creators. Ingest up to 150+ photos in any major format (JPG, PNG, WEBP, AVIF, BMP, TIFF, SVG, GIF) and compile them in real time into immaculate, publication-grade contact sheets.

Featuring international print standards (A4 at 2480×3508 px, US Letter at 2550×3300 px, A3 Large Portfolio at 3508×4960 px, US Tabloid 11×17 at 3300×5100 px, 4K UHD 16:9, and Continuous Auto-Fit Canvas), the studio ensures razor-sharp 300 DPI typography and micro-photo detail when output to physical printers. Choose from four distinct aesthetic themes: classic 35mm Darkroom Filmstrip with analog edge sprockets and frame rebates (01A, 02A), Medium Format 120 Proofs with inspection checkmark badges, Modern Studio Clean with high-key neutral backgrounds, and Editorial Portfolio Catalog with client approval checkboxes.

Customize dynamic column and row matrices (2×2 to 12×12), fine-tune gap spacing and outer margins, toggle aspect ratio letterboxing versus uniform cropping, and embed comprehensive shoot branding banners alongside per-cell metadata (filenames, dimensions, sequence numbers, and byte sizes). Because all image downsampling, layout grid mathematics, and canvas compilation run 100% inside your browser’s local sandbox via HTML5 Canvas, your private shoots and client campaigns are never transmitted to any external server.

⚡ 100% Client-Side Private Canvas Engine

Universal Image Contact Sheet & Proof Studio

Create high-resolution contact sheets, 35mm darkroom filmstrip proofs, and commercial thumbnail catalogs with customizable grid geometry and metadata in real time.

📷 Loaded Photos

0 Photos • 0 Sheets

📐 Sheet Target Resolution

A4 Print • 300 DPI (2480×3508)

🎨 Aesthetic Theme

35mm Filmstrip (Dark)

🔒 Privacy & Security

Zero Server Transmission

⚡ Quick Profiles:

🎞️ 35mm Darkroom Proof (6x6 • Dark) 💼 Commercial Client Sheet (4x5 • Clean) 💍 Wedding Shoot Catalog (3x4 • Editorial) 📱 Quick Social Grid (3x3 • 1:1 Square)

🌓 Theme Mode: Auto

📥 Multi-Image Batch Ingestion 0 / 150

🖼️

Drag & Drop Photos Here

Supports JPG, PNG, WEBP, AVIF, BMP, TIFF, SVG, GIF

📂 Select Images 🧪 Sample Shoot

Reorder & Edit Sequence:

A-Z Clear

No photos loaded yet. Drag photos or click "Sample Shoot" to test.

🎨 Photographic Aesthetic Theme

🎞️ 35mm Film

📷 Medium 120

⚪ Modern Clean

📰 Editorial

Paper / Canvas Format: A4 International Document (2480×3508 px @ 300 DPI) US Letter (2550×3300 px @ 300 DPI) A3 Large Portfolio Proof (3508×4960 px @ 300 DPI) US Tabloid 11×17 (3300×5100 px @ 300 DPI) 4K Digital Display Proof (3840×2160 px 16:9) Continuous Auto-Fit Canvas (Auto Height)

Columns: 4

Rows: 6

Cell Gap: 16 px

Margin: 30 px

Photo Fit Strategy: Fit Aspect Ratio (Letterbox / Full Photo) Cover / Uniform Crop (Fill Cell) Square Crop (1:1 Center Cut)

Custom Background Fill: Auto Match Selected Theme Classic Darkroom Black (#0B0F19) Studio Pure White (#FFFFFF) Neutral Slate Charcoal (#1E293B) Off-White Minimalist (#F8FAFC)

🏷️ Metadata & Banner Branding

Include Shoot Header Banner

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Include Per-Cell Metadata Labels

Sequence (#001) Filename Dimensions Byte Size

Label Font: Monospace (Film Analog) Inter / Modern Sans Playfair / Editorial Serif Courier Vintage

Font Scale: Compact Standard Large / Prominent

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Include Proof Sheet Footer

⚡ Re-Generate Sheet

🖼️ Contact Sheet Canvas 🖨️ Print Preview 📊 Photo Matrix (0)

− Fit + Fit 100%

#	Thumb	Filename	Pixel Resolution	Aspect	Approx Size
No photos loaded.

Format: Lossless PNG (.png) High-Quality JPEG (.jpg) Modern WebP (.webp)

📋 Copy Image 🖨️ Print Sheet 💾 Download Sheet

Contact Sheet History, Darkroom Proofing & Print DPI Guide

Learn how master photographers curate work and why 300 DPI calculations matter for physical print proofs.

🎞️ The Origins of Darkroom Contact Sheets in Photography ▼

In traditional analog photography darkrooms, a contact sheet (also called a proof sheet) was made by placing strips of 35mm or 120 film negatives directly against photographic emulsion paper under an enlarger light. This 1:1 exposure allowed legendary photojournalists and portrait masters—from Henri Cartier-Bresson to Richard Avedon—to rapidly inspect focus, framing, exposure brackets, and expressions across an entire roll of 36 exposures without printing individual enlargements. Modern digital contact sheets carry on this heritage by giving art directors, clients, and photographers an organized, bird's-eye view of a shoot.

📐 Why 300 DPI is Essential for Physical Print Proofs ▼

Standard computer displays render at 72 to 144 DPI (dots per inch), but commercial offset presses and fine-art inkjet photo printers require 300 DPI to render micro-typography, camera metadata, and miniature photo details without pixelation or halftone artifacts. For example, an A4 sheet at 300 DPI requires 2480 × 3508 pixels (approx 8.7 megapixels), while a US Letter sheet requires 2550 × 3300 pixels. This studio engine renders full-resolution canvases conforming to these exact print dimensions.

🖼️ Letterbox Aspect Fit vs. Uniform Center-Cropping ▼

When creating proof sheets with mixed portrait (vertical) and landscape (horizontal) orientations, you can choose between two rendering modes: Fit Aspect Ratio (Letterbox) preserves 100% of your camera sensor's original composition with slight border margins, which is ideal for photographic review; Cover / Uniform Crop crops all photos evenly to fill their cell geometry, creating a clean, seamless geometric mosaic.

🔒 100% In-Browser Privacy Guarantee ▼

Your private client sessions, unreleased commercial campaigns, and personal photos are never uploaded to any remote server or cloud API. All image downsampling, layout grid mathematics, metadata extraction, and lossless canvas compilation run exclusively within your browser's local sandbox using the HTML5 Canvas 2D engine.

✓ Contact sheet generated!