C4 Envelopes

Stand out with our custom-printed C4 envelopes!

Customised printed envelopes convey professionalism and leave a positive impression on customers and business partners. Configure your desired envelopes directly in the configurator - whether with or without a window, self-sticking or gummed - we deliver top quality at favourable prices!

Format: C4 (324 x 229 mm)
4 colours (CMYK) or in spot colours (Pantone)
With self-seal or gummed flaps
Single and double-sided printing possible
Available in print runs starting at 500 copies

Our product range features a variety of different letter papers to match our printed envelopes.

Frequently asked questions

Can I also order products that are not included in the standard product range?

Yes. Flyerline Schweiz AG is capable of providing you with nearly any conceivable printed product. We have one of the most extensive, state-of-the-art pools of printing and processing equipment in Switzerland. If you don’t see the product you want in our standard range, please use the contact form to send us your request. Our Sales team will be happy to prepare an attractive, customised quote.
How quickly can Flyerline deliver?

Delivery times vary depending on the specific product and print run. We always make every effort to produce and deliver your printed matter as quickly as possible. We generally need 2-5 working days, depending on the product. When you place your order, we offer a “Rush” option for most products that generally ensures you expedited production and a turnaround time of one working day. The actual time required for production and the expected shipping date can always be found in our shop, right by the configured print product.
How should I deliver my print data?

Ideally, we recommend that you send us a print file with a resolution of 300 dpi in CMYK colour mode (colour profile: PSO Coated, V3) and a bleed of 3 mm. The data formats that work best are .pdfx1, .pdfx3 and .pdfx4 as well as .tiff and .jpg for picture files. For detailed information, please refer to our “Data Delivery Tips”. You will find this document and the corresponding product data sheet both in our Download Centre and by the product in question.
What does 4/0 or 4/4 mean?

4/0 colour means: printed in four colours on one side (full colour)
4/4 colour means: printed in four colours on both sides (full colour)
Can I also send Office files to Flyerline?

Yes. But since Office files cannot be processed for professional printing, we first have to convert them into printable files. We charge a conversion fee of CHF 25 per file and page.
What is CMYK?

Cyan, magenta and yellow are the primary colours used for subtractive colour mixing. Black (K) is added because the primary colours are unable to produce a pure black. CMYK is the colour space required for printing. All masters are converted into CMYK files if they are not delivered in CMYK format.
My file is in RGB mode. Will that work too?

Yes. We convert the data into CMYK. This could result in slight variations in colour, especially in the case of extremely bright colours, since we do not know what colour was originally used and RGB documents look different on every screen. If you provide us with print data in RGB mode, we recommend selecting the “Proof” option.
What is bleed?

The bleed is the area of the print data that extends beyond the normal edge. Bleeds are necessary because printing machines work within a certain tolerance range and the paper can shift slightly during printing. Please create print files that have a 3 mm bleed on each edge.

C4 envelopes – high-quality printing, made by Flyerline

Make a professional impression on your customers with appealing and individually designed envelopes. These supplies are your business card to the outside world and determine which impression your company will make. So impress them with quality: Flyerline Schweiz AG offers high-quality printed envelopes at a low price. Our C4 envelopes guarantee that you can project a professional image that leaves a lasting impression on your customers and business partners.

C4 envelopes – wide range of styles

Our C4 envelopes are available with or without windows and with self-seal or gummed flaps. The window can be located either on the left or on the right as desired. The envelopes can be printed with a bleed-off on three sides.

The difference between self-seal and gummed flaps is that gummed flaps must be moistened to seal the envelope before mailing. The same approach is also used for stamps, for example.

Sustainability is pivotally important to Flyerline Schweiz AG, which is why we use only FSC-certified paper for our envelopes. As an internationally recognised non-profit organisation, FSC strives to bring greater transparency to business activities in the wood processing industry. After all, transparency is the best way to enforce the principles of ecological and sustainable forestry. Since modern-day consumers question products’ origin and the conditions surrounding their production, FSC can offer them both confidence and clarity.

Number of pages

The envelopes can be printed on one or both sides.

Colours used for C4 envelopes

Flyerline Schweiz AG prints using the CMYK 4-colour model (also referred to as Euroscale). Any RGB colours contained in the files will be converted to CMYK. Of course, you can also have your envelope printed in Pantone colours. Please indicate the Pantone colour number when placing your order.

Print runs

Envelopes can be ordered with print runs ranging from 500 to 100,000 copies.

Professional design assistance: We’ll design your envelopes

Want to revamp your envelopes but need help with the design? Our professional graphics department will be happy to help you design your printed C4 envelopes.

Contact and Support

Do you have any questions or haven't found what you need? We'd be happy to advise you individually and help you order your printed materials. For personal assistance, please contact our Customer Centre.