Double River Printing

Optimizing Large Format Print Job Files To Lower File Size

Our website has a 500 MB per-file upload limit. To ensure smooth uploads and faster processing, we recommend optimizing your files before submitting. Below are best practices for keeping files print-ready and within size limits.

1. Resolution Guidelines

  • For large format printing (posters, banners, signage, etc.), set resolution to 150 DPI at final size.
  • Higher resolutions (300 dpi or above) don’t improve print quality when viewed from a normal distance, but will significantly increase file size.
  • Example: A 36″ Ă— 48″ poster at 300 dpi can be over 1 GB, while the same file at 150 DPI may be under 200 MB.

2. Flatten Layers

  • Merge all visible layers in Photoshop.
  • In Illustrator, use Object → Flatten Transparency if the design contains many layered effects.
  • Flattened files are smaller, render faster, and reduce risks of missing elements during print.

3. Convert Fonts to Outlines

  • Outlining text prevents font embedding and avoids font substitution issues.
  • In Illustrator: Select All → Type → Create Outlines.
  • In Photoshop: Rasterize text layers before flattening.

4. Remove Extra Elements

  • Delete hidden or unused layers.
  • Clean up objects outside the artboard or bleed area.
  • Remove stray points, swatches, and unused symbols.
Select the fields to be shown. Others will be hidden. Drag and drop to rearrange the order.
  • Image
  • SKU
  • Rating
  • Price
  • Stock
  • Availability
  • Add to cart
  • Description
  • Content
  • Weight
  • Dimensions
  • Additional information
Click outside to hide the comparison bar
Compare