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Description
Product Specs
Submission Specs
Templates

"Deliver important documents—professionally and perfectly protected."

Sending out contracts, certificates, or other critical documents? Keep them safe and crease-free with Printox’s board backed envelopes. Designed with a sturdy cardboard backing and a smooth white front, these envelopes are ideal for professional mailings.

Add your branding with a full-colour print—perfect for making a strong, memorable impression. The convenient peel-and-seal strip ensures secure and hassle-free closure every time.

Note: To maintain the envelope’s durability, printed designs are limited to 15% of the surface area.

  • Protective board backing keeps documents flat and secure
  • Full-colour print for your logo or design (15% surface coverage max)
  • Peel-and-seal closure for quick and secure mailing
  • Ideal for contracts, certificates, or premium correspondence

When presentation matters, Printox board backed envelopes help you deliver with impact and professionalism.

1. Preparing Your Artwork for Print – Printox Guidelines
At Printox, we want to ensure your prints come out perfectly. To help with that, we highly recommend using our downloadable templates and guides, available in the Templates section of our website. Before exporting your design to PDF, make sure to delete any template layers.
2. File Formats We Accept
Already have a design? No problem. While we prefer print-ready PDF files, we also accept:
● JPEG
● PNG
● EPS
For photos: Use high-resolution JPEGs (preferably without compression).
For graphics/text: Use vector-based, print-ready PDFs.
For mixed content: Print-ready PDFs give the best results.
3. Colour Mode: CMYK (FOGRA39)
Always prepare your files using CMYK colour mode not RGB. Use the FOGRA39 (ISO Coated v2) colour profile for best print accuracy. Not sure about your file's colour mode? We can convert it for you, though this may cause slight colour variations.
4. Resolution: Minimum 300 DPI
Ensure that all images and graphics are at least 300 dpi for crisp, high-quality output.
5. Bleed and Safety Margins
To accommodate cutting tolerances:
● Add a 3 mm bleed on all sides of your design.
● Keep all important content at least 4 mm inside the edge or fold lines.
● Avoid borders or frames on small items, as they may appear uneven.
6. Fonts should be at least 6 pt.
Minimum font size: 6 pt
● All fonts must be outlined or embedded
● For small black text, use 100% black only
● Note: We do not proofread for spelling or grammar errors.
7. Line Thickness
● Lines must be at least 0.25 pt
● Negative (white) lines should be at least 0.5 pt
8. Overprint Settings
Ensure no elements are unintentionally set to overprint. This can cause unexpected results. Only use overprint if you're familiar with its effects.
9. Ink Coverage
● Maximum ink coverage should not exceed 300%.
● For colour images, convert to CMYK with a 260% ink limit.
10. Avoid Thin Borders
Due to trimming tolerances, we recommend avoiding borders smaller than 20 mm on designs smaller than A4. Thin borders may appear off-centre after cutting.
Download ready-to-use brochure templates in PSD, AI, and InDesign formats.
  • Material: 120 gsm offset paper front, strong cardboard backing
  • Sizes available:
  • 262 x 371 mm
  • 229 x 324 mm
  • 185 x 280 mm
  • 162 x 229 mm
  • Print: Full colour (limited coverage)
  • Finishing: Self-adhesive strip for easy sealing

Boardback Envelopes

Size
162x229mm
185x280mm
229x324mm
240x340mm
262x371mm
Service Level
saver
Carrierdays
2
Productiondays
4
Material
120gsm offset

Price & Delivery

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