Paper Size Blog
In-depth articles about paper sizes, dimensions, printing technology, folding, and international standards. Practical guides for designers, printers, and architects.
24 articles
What is A4 Paper? The Complete Guide
Everything about A4: dimensions, history, ISO 216, pixel conversion, and global adoption.
US Paper Sizes Explained: Letter, Legal, Tabloid, ANSI
Why the US uses Letter and Legal instead of A4. Complete history of the ANSI system.
Understanding Envelope Sizes: C, DL, B, and US
The complete guide to envelopes: ISO C series, DL business envelope, US numbering system.
DPI vs PPI: The Complete Guide
What is the difference between DPI and PPI? Resolution, pixels, formulas, and practical examples.
How to Fold A4 into A5, A6, and DL: The Complete Guide
Step-by-step instructions for folding A4 into A5, A6, and DL.
Paper Weight Explained: GSM, lb, and Caliper
What does 80 gsm mean? The complete guide to paper weight and thickness.
Japanese Paper Sizes: JIS A, B, and Traditional Formats
Japan has its own JIS standards. The B series is larger than ISO B.
British Paper Sizes: Foolscap, Quarto, Imperial
Traditional British sizes before ISO. Foolscap, Quarto, Imperial.
How to Choose a Poster Size: A0, A1, A2 or Custom
The guide to choosing the perfect poster size based on viewing distance and budget.
Business Card Sizes Worldwide: Europe, US, Japan
85 × 55 mm in Europe, 89 × 51 mm in US, 91 × 55 mm in Japan. The worldwide guide to business cards.
Business Card Design Trends 2026: What's Modern Now
Minimalism, QR codes, sustainability, and tactile materials: the key business card trends for 2026.
How to Design a Business Card: Step-by-Step Guide 2026
From size and typography to print: the complete guide to designing a professional business card.
Paper Sizes Reference: A, B, C Series and More
A4, Letter, B5, C4 envelopes, photo formats: all dimensions in mm, inches, points, and pixels at 72–600 DPI.
Paper Weight and GSM Explained: From 80 gsm to 450 gsm
What does GSM mean? From office paper to flyers to business cards: the right paper weight for every project.
Envelope Sizes: The Complete Guide (C Series, DL, US)
C4, C5, C6, DL, #10 and more: every envelope size with dimensions, fit, and use.
Photo Print Sizes Explained: From 3R to 10R and Poster Formats
3R, 4R, 5R, 8R, passport photos, squares, and posters: every photo size with dimensions and pixels.
A4 vs Letter: Which Should You Use?
210 × 297 mm vs 216 × 279 mm: differences, compatibility, and when to choose which.
Coated vs Uncoated Paper: Which to Choose?
Glossy, matte, coated, uncoated: properties, differences, and the right choice for every project.
Paper Recycling and Sustainability: The Complete Guide
FSC, recycling, carbon footprint, and sustainable paper choices: what really matters.
How to Choose the Right Paper for Your Project
Weight, finish, colour, certification: the 7 steps to the perfect paper choice.
Cardstock Thickness Guide: 65lb, 80lb, 100lb, 110lb Explained
Convert US pounds to GSM: what 65lb, 80lb, 100lb, and 110lb really mean.
Binding Types Explained: Saddle Stitch, Perfect Bind, Spiral
From 8 to 800 pages: the right binding for brochures, books, manuals, and calendars.
Print Bleed, Trim, and Safe Area: A Designer's Guide
Why 3 mm bleed and 5 mm safe area decide whether your print succeeds or fails.
Standard Brochure and Flyer Folds Explained
Bi-fold, tri-fold, Z-fold, roll fold: which fold type fits which project?