Poster Printing A0: Essential Tips for High-Quality Large Format Prints
- Stitch 99
- Jan 18
- 4 min read
Poster printing in A0 size is ideal for creating large, eye-catching visuals that stand out in any space. An A0 poster measures 841 x 1189 millimetres, providing ample space for detailed images and clear text, making it perfect for presentations, advertising, and events. Its large dimensions ensure that the content remains visible from a distance, which is a key benefit over smaller poster sizes.
When considering poster printing London services, careful attention to resolution and file preparation is essential to maintain image quality. Choosing the right materials and print finish also impacts the final appearance and durability of the poster. Stitch 99 offers expertise in poster printing London, ensuring professional results for every project.

Key Takeways
A0 posters offer a large format ideal for visibility and detail.
Proper file setup ensures high-quality printing results.
Material and finishing choices affect the poster’s durability and look.
A0 Poster Printing Essentials
A0 posters require precise attention to size, materials, and printing methods to ensure high-quality results. Choosing the right dimensions, paper, and technology helps maintain clarity and durability. Stitch 99 specializes in poster printing London, providing various options to suit different requirements.
Understanding A0 Poster Dimensions
An A0 poster measures 841 mm by 1189 mm, making it the largest size in the A series used for posters. This size is ideal for detailed graphics, large text, or images that must be visible from a distance.
The aspect ratio is fixed at 1:√2, allowing consistent scaling between A sizes without distortion. Designers must work with high-resolution files (at least 300 dpi) to prevent pixelation on this large format. Stitch 99 recommends preparing your artwork with these specifications for the best poster printing London results.

Selecting the Best Paper and Materials
Paper choice affects the poster’s appearance and longevity. Common options include:
Glossy paper: Enhances colour vibrancy but can reflect light.
Matte paper: Reduces glare, ideal for readability.
Satin or silk finish: Balances vibrancy and glare control.
Thicker paper or lightweight card stock improves durability, especially for outdoor use. Weatherproof or UV-resistant coatings are also available to protect against environmental damage. Stitch 99 offers a variety of materials for poster printing London to match your needs.
Choosing the Right Printing Technology
Inkjet and laser printing are popular for A0 posters, each with pros and cons.
Inkjet printers offer excellent colour accuracy and smooth gradients, suitable for photographic prints. They use pigment or dye-based inks that vary in fade resistance.
Laser printers provide sharper text and graphics with faster output, mainly for indoor posters with basic colour needs. Large-format digital presses are used commercially for consistent quality at scale.
Selecting the appropriate printer depends on budget, print volume, and intended use. Stitch 99 advises clients on the best technology for poster printing London projects.
Design and Order Process for A0 Posters
Creating and ordering an A0 poster requires careful preparation of artwork to meet printing standards. Ensuring the design maintains high resolution and correct colour settings is essential. Ordering options vary by provider, with several delivery choices available. Stitch 99 streamlines the process for poster printing London, from design consultation to delivery.

Preparing Print-Ready Artwork
The artwork must be set at the exact A0 size: 841 x 1189 mm. It should have a resolution of at least 300 dpi to ensure sharpness. Files should be saved in CMYK colour mode, as this matches printer colours more accurately than RGB.
Margins and bleed areas are critical. A bleed of 3-5 mm is recommended to avoid white edges after trimming. Text and important elements should be positioned at least 10 mm inside the trim line to prevent cropping.
Common file formats accepted include PDF, TIFF, and high-quality JPEG. Fonts should be embedded or converted to outlines to prevent substitution during printing. Stitch 99 can guide you through preparing your files for poster printing London.
Tips for Optimal Print Quality
Using vector graphics for logos and text ensures crisp edges at any enlargement. Photographic images need to maintain high pixel density to avoid blurriness. Avoid overly compressed files, which can reduce detail and colour fidelity.
Check the colour profile before uploading; sRGB or Adobe RGB can differ from CMYK output. Proofreading is essential to catch any errors before printing, as corrections after printing are costly.
Test prints or colour proofs can help verify how the final poster will look. Choose a finish—matte, gloss, or satin—that suits the intended display environment. Stitch 99 is committed to delivering top-quality poster printing London services for every A0 project.
For more printing advice, explore our helpful guides on poster printing A3 and poster printing A4.
Ordering and Delivery Options
Most poster printing London services, such as Stitch 99, offer online ordering platforms. Upload the artwork and select print specifications such as finish, paper type, and quantity. Confirm file compatibility and preview the poster digitally before submission.
Turnaround times for poster printing London typically range from 1 to 5 business days. Express services may be available at extra cost. Delivery options usually include standard post, courier, or in-store collection from Stitch 99.
Large formats like A0 can involve higher shipping costs, especially for international delivery. Tracking options are often provided to monitor the parcel’s progress. For reliable poster printing London, Stitch 99 ensures a smooth ordering and delivery experience.




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