Postcard A6 printed – the most popular postcard size
A6 (105 × 148 mm) is the classic postcard size – familiar to the recipient, well-established in mailing and comfortable to handle. The format is compact enough to hand out, while still leaving room for a clear image and message.
Typical uses include campaign mailings, customer letters, event invitations, product cards inside packaging, thank-you and greeting cards, and in-store materials. A good fit for businesses, associations, event organisers and anyone who wants to reach their audience with a tangible, hands-on message.
Order easily from our online shop – domestic printing in Helsinki and fast delivery throughout Finland.
A6 Postcards - Popular
Customize & Estimate
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Materials and finishes
Pick the board based on the use case – each option is tested for postcard use.
Classic postcard feel with a warm tone. The traditional all-rounder.
Calm matte surface with no distracting glare. A solid general choice.
Sturdy premium board, pure white base with vivid colours.
Extra thick matte board with a substantial, high-end feel.
An eco-friendly option with a natural paper feel.
Printing single- or double-sided in full colour. Orientation selectable as portrait or landscape.
Who is the A6 postcard for?
The A6 postcard is a versatile tool that works in both mailing and handout settings.
- Campaign mailings and direct marketing
- Customer letters and offer mailings
- Event invitations and info cards
- Product cards inside packaging
- Thank-you and greeting cards for online shops
- In-store materials and handout campaign cards
- Association member letters and bulletins
Print artwork
Send a print-ready PDF following these specs and we'll get straight to printing – no back-and-forth.
- File format: print-ready PDF
- Exact size: 105 × 148 mm (A6)
- Resolution: 300 dpi
- Bleed: 3 mm on every edge
- Safe area: at least 3 mm inside the trim line
- Colour space: CMYK recommended, RGB accepted
- Double-sided: page 1 = front, page 2 = back in the same PDF
Frequently asked questions about the A6 postcard
What is the exact size of an A6 postcard?
The A6 postcard measures 105 × 148 mm. It is the most common postcard size in Finland and Europe, and it works as-is for standard letter mailing.
How fast can A6 postcards be printed?
aDigi is an agile digital print shop in Helsinki. The production time is selected at checkout, and the fastest option is 1 working day with a print-ready PDF.
Can the A6 postcard be mailed with a standard stamp?
Yes. The A6 (105 × 148 mm) fits within small letter dimensions and works with standard postage. Always check current postage rates from your local postal service, as pricing may change.
Should colours be converted to CMYK before sending the PDF?
CMYK is recommended because printing happens in CMYK and colours stay closest to the intended result. RGB artwork also works – we convert the colours when needed, but there may be slight tonal differences compared to your screen.
Which board is best for a mailed campaign card?
For mailings we recommend 270 g or 330 g postcard board – they survive handling and have a classic look. For an exceptionally sturdy and premium feel in the recipient's hands, choose 400 g matte.
270g Ensocoat 2S – Premium Card Material
Ensocoat 2S 270g is a double-sided coated premium board material that combines excellent printability, durability, and a stylish appearance. Both sides are equally smooth and bright, making it the perfect choice for products where the look of both sides matters – such as playing cards, educational cards, and laminated cards.
The multi-layer fiber structure gives the board outstanding rigidity and strength, while its ultra-smooth surface ensures vibrant colors, sharp details, and the ability to handle demanding finishes like digital foil printing, die-cutting, and creative folding.
Why Choose Ensocoat 2S?
- Double-sided quality: identical smooth surface on both sides.
- Excellent printability: vivid colors and sharp, precise details.
- Strong and durable: ideal for repeated use and demanding products.
- Versatile applications: perfect for playing cards, educational materials, menus, and folders.
A Responsible Choice
Ensocoat 2S is available with FSC® and PEFC™ certification, ensuring that its raw materials come from responsibly managed forests. By choosing this material, you support sustainable forestry and environmentally friendly production.
300g Matte – Sturdy and Versatile Card Material
300g matte cardstock is an excellent choice when you want a sturdy and premium feel for your product. Its non-reflective matte surface highlights colors and text beautifully, giving the final product a professional and stylish look. This material is perfect for a wide range of uses, such as business cards, promotional cards, loyalty cards, invitation cards, and postcards.
The 300g matte cardstock is thick and durable enough to maintain its shape and make a strong impression the moment it’s held. Its versatility makes it ideal for both marketing purposes and personal projects – whether it’s strengthening your company’s brand, sending out event invitations, or creating a personalized greeting.
Why choose 300g matte cardstock?
- Sturdy and durable: retains its form and withstands repeated handling.
- Elegant matte finish: showcases text and images without distracting glare.
- Versatile applications: perfect for business cards, invitations, postcards, product tags, and much more.
Sustainable and high-quality
This material is made from FSC®-certified fibers, ensuring responsible forestry and environmentally friendly production. It is a durable and reliable choice for high-quality printed products.
330g Arvokas – Klassiselle postikortille suunniteltu kartonki
330g arvokas postikorttikartonki tarjoaa jämäkän ja laadukkaan tuntuman, joka on tuttu perinteisistä postikorteista. Sen tasainen ja miellyttävä pinta toistaa kuvat ja grafiikan erinomaisella tarkkuudella, antaen lopputulokselle elegantin ja viimeistellyn ilmeen.
Tämä kartonki on erityisesti suunniteltu postikorteille – se kestää kuljetuksen, käsittelyn ja postimerkin liimauksen menettämättä muotoaan. Se sopii täydellisesti myös kutsuihin, mainos- ja taidekortteihin, kun tavoitteena on ammattimainen ja arvokas vaikutelma.
Miksi valita 330g arvokas kartonki?
- Aito postikorttituntuma: jämäkkä ja kestävä rakenne.
- Laatua viestivä ulkonäkö: kuvat ja sävyt toistuvat selkeinä ja kirkkaina.
- Sopii myyntiin ja postitukseen: ei taivu helposti, säilyttää muotonsa.
Vastuullinen valinta
Kartonki on valmistettu FSC®-sertifioiduista kuiduista, mikä tukee vastuullista metsänhoitoa ja ympäristöystävällistä tuotantoa. Turvallinen ja laadukas vaihtoehto niin kaupallisiin kuin henkilökohtaisiin painotuotteisiin.
