Custom

Envelopes & Mailing

Branded envelopes that seal properly, hide what is inside them, and carry an address a courier can actually deliver to.

See all your envelope printing options

Business, window, document, invitation and salary envelopes, printed on ready-made stock or converted from flat sheets when the design runs edge to edge.

Give your business mail a professional look with custom business…

Keep important paperwork neatly packed with custom document envelopes. Suitable for contracts, certificates,…

Make your cash gifts feel more special with custom Eid…

Make every invitation feel special with custom invitation envelopes. Choose…

Keep cash payments and salary distributions organized with custom salary and cash envelopes….

Make everyday mailing easier with custom window envelopes. The clear…

Envelope types

What goes inside decides almost everything: the size, the opening edge, the paper weight and whether the envelope needs to hide its contents. Start from the item, not from the design.

Business envelopes

DL size for a letter folded in three, printed with your logo, address and a return line. The everyday envelope for correspondence, quotations, cheques and anything that goes out on your letterhead.

Window envelopes

A die-cut window with a clear film, so the address printed on the letter shows through and nothing has to be addressed twice. The format for invoices, statements, fee slips and anything sent in volume.

Document envelopes

C4 and C5 pocket envelopes that take A4 flat or folded once, often board-backed or cloth-lined for contracts, certificates, legal papers and anything that must not arrive creased.

Invitation envelopes

Square and rectangular envelopes on heavier stock, with a printed inner liner or a pointed flap. Made to match a card rather than to carry a letter, so the size is measured from the invitation rather than chosen from a standard range.

Salary and cash envelopes

Small opaque envelopes with an internal security tint so contents cannot be read against the light. Printed with a name and department panel where wages, bonuses or reimbursements are handed over.

Eidi and shagun envelopes

Seasonal money envelopes for Eid, weddings and celebrations, printed with patterns or Urdu calligraphy on coloured stock and cut to size here. Ordered in volume by families, banks, retailers and corporate offices.

Sizes and what fits inside

Standard sizes below, with what each one takes. Always allow a few millimetres of clearance: an envelope cut to the exact size of its contents is difficult to fill and tears at the corners.

  • DL, 110 x 220 mm – A4 folded in three. The standard business envelope for letters, cheques, quotations and statements.
  • C6, 114 x 162 mm – A4 folded twice, or an A6 card. Compact and economical for short notes and small cards.
  • C5, 162 x 229 mm – A4 folded once, or A5 flat. Used where a document should arrive with a single fold rather than three.
  • C4, 229 x 324 mm – A4 completely flat. Contracts, certificates, drawings, reports and anything that must not be creased.
  • Square, 160 x 160 mm – invitation cards and greeting cards. Note that square envelopes can attract a higher postal rate than rectangular ones.
  • Salary envelope, 90 x 160 mm – the standard wage packet size, small enough to hand over discreetly and opaque enough that notes do not show.

Custom sizes are made from flat sheets and converted, which is how we match an envelope to an invitation card or a non-standard document. Send us the finished card size and we will work back to the envelope.

Flaps, closures and opening edges

Two separate choices, and both change how the envelope is used more than how it looks.

Opening edge

  • Banker or wallet opens along the long edge. Easier to fill by hand, which is why most business and invitation envelopes use it.
  • Pocket opens along the short edge. Stronger for heavy or bulky contents, and the usual choice for C4 document envelopes.

Flap shape

  • Straight flap – plain and rectangular. The default on business envelopes.
  • Pointed or triangular flap – the traditional invitation shape, and the one that suits a printed monogram or a wax seal.
  • Curved or banker flap – a softened rectangle, common on premium correspondence.

Closure

  • Gummed – moisten to seal. Cheapest, and fine for envelopes sealed a few at a time.
  • Peel and seal – a self-adhesive strip under a paper tape. Worth the extra cost the moment somebody has to seal a few hundred by hand, and it holds better in humidity, where gum can seal itself in storage.
  • String and button, or tuck flap – reusable closures for internal document circulation rather than posting.

In Karachi humidity, gummed envelopes stored for months can stick together in the box. If the run will sit in a store room before use, peel and seal is the safer specification.

Paper stocks and finishes

The question that decides envelope stock is not how it looks, it is whether anyone can read the contents through it. Thin white paper held against a window shows a cheque number, a salary figure or a result. If what you are sending is confidential, weight and tint matter more than anything printed on the outside.

100gsm white wove

The standard business envelope stock. Clean, opaque enough for ordinary correspondence and economical in the thousands. The default unless the contents are confidential.

120gsm premium white

Noticeably more substantial and considerably more opaque. The right choice for cheques, statements, legal correspondence and anything you would rather nobody read against a light.

Security-tinted inside

A pattern printed on the inside face so contents cannot be read through the paper at all. Standard practice for salary envelopes, bank statements, results and anything carrying figures.

Kraft and khaki

Hard-wearing brown stock for documents, dispatch and internal circulation. Cheaper than white, tougher in transit, and it does not show handling marks the way white envelopes do.

Board-backed and cloth-lined

A stiffened back panel or a cloth lining for certificates, contracts, drawings and photographs. It stops contents bending in a courier bag, which no amount of Do Not Bend printing will.

Premium, coloured and lined

Coloured and textured stock at 120gsm and above, with a printed paper liner inside the flap. Because we convert envelopes from flat sheets here, the liner is printed as part of the same job rather than added later, and the envelope can be cut to any size you need.

Printed on ready-made envelopes, or converted from flat sheets

This is the first decision on any envelope job and it decides your cost, your minimum quantity and what your design can do.

Printing on ready-made envelopes means we print onto stock envelopes that are already cut and glued. It is cheaper, it works from small quantities, and it is what most business envelope orders use. The limits are physical: we cannot print into the extreme edges, ink laid over the glue seams and the flap crease prints unevenly, and full-bleed colour is not possible. Keep the design 5 mm clear of every edge and off the seams and it prints cleanly.

Converting from flat sheets means we print the envelope flat, then die-cut, crease and glue it into shape. Colour can run right to the edges and across the flap, the inside can be printed as a liner, and the size can be anything you specify. It costs more, needs a higher minimum quantity, and a custom size needs a cutting die made once.

The practical rule: if your design is a logo, an address block and a colour band, print on ready-made and save the money. If the envelope is part of the presentation, a wedding suite, a premium client pack, a product box insert, or the colour has to run to the edge, convert from flat.

  • Matching a card size exactly is only possible by converting.
  • Printed inner liners are only possible by converting.
  • Small runs under a few hundred are almost always better on ready-made.
  • Reprints of a converted design are cheaper than the first run, because the die already exists.

Getting it delivered and opened

An envelope has two jobs after it leaves you: reach the right door, and get opened rather than set aside. Both are decided by what is printed on the outside.

  • Put a phone number on the address panel. Couriers here call before delivering far more often than they hunt for a house number, and an address without a phone number is the single most common cause of a returned parcel.
  • Write addresses the way the area is actually navigated: house or flat number, street, block, phase or sector, then the town and city. A technically correct address in the wrong order slows delivery in most societies.
  • Keep the address panel clear. No background colour, no watermark and no artwork behind it. Postal and courier marks go on top of that area and dark backgrounds make the whole panel unreadable.
  • Leave the top right corner free for a stamp or a franking mark, and leave the bottom strip clear for sorting marks.
  • Always print a return address. Undelivered mail without one is simply lost, along with whatever it contained.
  • Decide whether it should look like a letter or a mailer. A plain envelope with a name and a real stamp gets opened. The same contents in an envelope printed with an offer across the front gets sorted with the junk. Choose deliberately; there is no middle option that does both.
  • Windowed envelopes read as bills. Correct for invoices and statements, wrong for anything you want opened with goodwill.
  • For courier dispatch, use the courier’s own flyer over your printed envelope for anything bulky, and keep your branded envelope for the document inside. It is cheaper than having a premium envelope arrive scuffed.

If you are sending in volume, we can print addresses directly onto the envelopes from your list through variable data printing, which is faster and cleaner than labels. Send the list as a spreadsheet with one column per field.

Urdu and bilingual envelopes

Envelopes are the one place where the language choice is partly practical rather than editorial, because part of what is printed has to be read by a sorting clerk or a courier rider.

  • Keep the address panel and postcode in English and standard numerals. This is the text a courier or postal clerk has to read at speed, and mixed scripts on an address slow delivery or cause misrouting.
  • Your name and identity can be in Urdu. Company name, tagline, department and return line in Urdu on the flap or the left panel is common and looks considered rather than cluttered.
  • Eidi, shagun and invitation envelopes are often fully Urdu, and this is where calligraphic Nastaliq earns its place, printed as a single ink colour on a coloured stock.
  • Send Urdu as outlines or a print-ready PDF with fonts embedded. Nastaliq letters join and reshape, so live text in a font we do not hold will break apart.
  • Working in InPage? Export to PDF and send that rather than the .inp file. If you only have the InPage layout, send it and we will rebuild it as a print file.
  • Give Urdu more line spacing and keep it clear of the flap crease, since a sloping baseline set close to the fold will be cut or creased through.

Sindhi, Pashto and Arabic follow the same rules. Send us the copy and we will typeset it.

Why businesses print their envelopes with Zarvex

Envelopes look like the simplest job on the list and produce more reprints than most, usually for reasons that had nothing to do with the artwork.

Opacity checked before printing

We will tell you when the stock you have chosen is too thin for what is going inside it, and offer a heavier weight or an internal security tint. A salary envelope you can read against a window is a problem no design fixes.

Window alignment templates

Window envelopes only work if the address on your letter lands inside the window when folded. We send the template with the exact window position so your document is built to match, rather than discovered not to.

Flat conversion for full-bleed designs

When colour has to run to the edge, across the flap or onto an inner liner, we print flat and convert rather than telling you it cannot be done. Custom sizes to match an invitation are made the same way.

Addressing from your list

Addresses printed directly onto the envelopes from a spreadsheet through variable data, which is cleaner than labels and faster than writing them. Quotes are in PKR with stock, printing and conversion included.

How ordering works

01. Start from the contents

Tell us what goes inside and we will confirm the size, the opening edge, the weight and whether a security tint or a window is needed.

02. Send your artwork

Upload print-ready artwork, or send your logo, address and any Urdu copy on WhatsApp and our designers will lay it out on the correct template.

03. Approve the proof

You get a proof showing the print area, seam and flap clearance, and the window position where there is one. Check the return address and phone number carefully.

04. Print, convert and deliver

Printed on ready-made stock or printed flat, die-cut, creased and glued, then boxed and delivered in Karachi or couriered nationwide.

Getting your artwork press-ready

Which rules apply depends on whether we are printing on ready-made envelopes or converting from flat sheets, so tell us which at the start.

On ready-made envelopes

  • Keep everything 5 mm clear of all four edges. There is no bleed; ink cannot run off the edge of an envelope that is already glued.
  • Stay off the seams and the flap crease. Ink laid over a glue line or a fold prints unevenly and can smear. Solid dark panels across a seam will show the join.
  • Avoid heavy full-coverage colour. Large ink areas on a thin envelope cause curling and slow drying on a stock that is already glued.

Converting from flat sheets

  • Build on our die template for the size, with the die line on its own layer as a vector path in a spot colour named Die, set to overprint and not printing.
  • Bleed 3 mm beyond the die line all round, and keep text 5 mm inside every crease.
  • Inner liners are a separate artwork file for the inside face. Tell us if the liner should show on the flap only or through the whole envelope.

Both

  • Leave the address panel clear of artwork, and the top right corner free for a stamp.
  • Window envelopes: ask for the window coordinates before you lay out the letter that goes inside it, and check the address position with a folded printout of your own document first.
  • 300 DPI, CMYK, rich black at C40 M30 Y30 K100 for dark areas, fonts outlined or embedded.
  • Files: print-ready PDF is best. We also accept AI, EPS, CDR from CorelDRAW, packaged INDD and layered PSD at final size, and mailing lists as a spreadsheet.

No artwork yet? Send your logo, address and what the envelope is carrying, and our design team will build it on the right template before it goes to proof.

Envelopes by trade

What goes inside decides the size and the opacity; how it travels decides the stock.

Corporate offices

DL envelopes matched to the letterhead for correspondence and cheques, with C4 pocket envelopes for contracts and reports. Order both together so the branding and the paper colour stay consistent.

Banks, finance and insurance

Window envelopes with an internal security tint for statements, policy documents and cheques. The tint is not optional here: account numbers and figures read straight through untinted stock.

Wedding and event card printers

Envelopes converted to match the invitation exactly, with printed monograms, pointed flaps and printed liners. Order envelopes and cards together so the fit is measured rather than estimated.

Payroll and HR departments

Opaque salary envelopes with a name, department and period panel, security tinted inside. Small, cheap and the simplest way to hand over wages without the amount being visible to the next person in line.

Schools and academies

Result cards, fee vouchers and parent correspondence in window or tinted envelopes, so a child carrying the envelope home cannot read it and neither can anyone else.

Online stores and dispatch

Branded C5 and C4 envelopes for documents, invoices and small flat items, board-backed where the contents must not bend. For bulky parcels the courier flyer does the travelling and your envelope goes inside it.

Quantities, pricing and reorders

Envelope pricing depends on the method. Printing onto ready-made stock envelopes is the cheaper route and works from small quantities. Converting from flat sheets, which is what full-bleed designs, printed liners and custom sizes need, involves printing, die-cutting, creasing and gluing, so it costs more per piece but opens up everything a stock envelope cannot do. Both are printed digitally, so there is no plate charge either way and no minimum tied to a design. Quotes are in PKR.

QuantityCost per envelope
25 – 100Highest per piece, though still viable
250Noticeably lower
500Best value on most jobs
1,000 and aboveQuoted per job

A few things worth deciding before the quantity is fixed.

  • Order envelopes with the letterhead and cards, not after them. Printed together, the paper and the ink match. Ordered separately months apart, they usually do not.
  • Keep the address panel free of anything that dates. Print the logo and the return address, not a phone number you are about to change.
  • Custom converted sizes get cheaper on reprint, because the cut path is already built and kept on record.
  • Store them flat and dry. Uncoated stock takes up humidity, and gummed flaps stored in a damp room can seal themselves in the box.

Reorders are simple. Your file and cut path stay on record, so a repeat run needs no new setup and no new proof unless the artwork has changed.

Envelope printing FAQs

Runs start at 25 envelopes, whether we are printing onto ready-made stock or converting from flat sheets. Everything is printed digitally, so there is no plate charge and no cutting die, which is why a custom size is possible at quantities most suppliers will not touch. Cost per piece falls as the run grows, most noticeably at 250 and 500.

Only by converting from flat sheets. On a ready-made envelope the paper is already cut and glued, so there is no bleed and the design has to stay 5 mm clear of every edge. If colour must run right to the edge or across the flap, we print flat and convert, which costs more and needs a larger run.

Through 100gsm white stock held against a light, often yes. For cheques, salary slips, statements, results and anything with figures, use 120gsm or heavier and add an internal security tint, which is a pattern printed on the inside face specifically to stop this. It costs very little and it is the whole point of the envelope for those uses.

The address printed on your document has to land inside the window once the sheet is folded, so the letter and the envelope have to be designed together. Ask us for the window coordinates before you lay out the document, and test with a folded printout of your own letter before the run.

Yes, directly onto the envelopes through variable data printing, taking one envelope per row of your list. It is cleaner than labels and far faster than hand-writing. Send the list as a spreadsheet with one column per field, and include phone numbers, since couriers here rely on them.

DL at 110 x 220 mm if the A4 sheet is folded in three, C5 at 162 x 229 mm if folded once, and C4 at 229 x 324 mm if it must stay flat. For certificates and contracts that cannot bend, use C4 with a board-backed panel.

Yes, and this is what the flat-sheet conversion is for. We cut and glue envelopes to whatever finished size you need, with a pointed flap and a printed inner liner if you want one. Send us the card size, or better, send a sample card and we will work back to the envelope with the right clearance.

Gummed is cheaper and fine when envelopes are sealed a few at a time. Peel and seal is worth the difference the moment somebody has to seal several hundred by hand, and it holds up better in humidity. If the run will be stored for months before use, specify peel and seal so the gum cannot seal itself shut in the box.

Yes. Keep the address panel in English and standard numerals so couriers and postal clerks can read it at speed, and put your company name, return line or greeting in Urdu on the flap or the left panel. Eidi, shagun and invitation envelopes are often fully Urdu, and Nastaliq calligraphy printed on a coloured stock works particularly well there.

Print-ready PDF is best, at 300 DPI in CMYK with fonts outlined or embedded. For ready-made printing, supply artwork positioned on the envelope size with 5 mm clearance all round. For converted envelopes, build on our die template with the die line on its own layer. We also accept AI, EPS, CDR from CorelDRAW, packaged INDD and layered PSD.

Yes. Send your logo, address, phone number and any Urdu copy, along with what the envelope will carry. Our designers lay it out on the correct template, keep the address panel and seams clear, and send a proof before anything is printed.

Across most of them, and the list keeps growing. The envelopes we print regularly go to corporate offices, banks, finance and insurance, wedding and event card printers, payroll and HR departments, schools and academies and online stores and dispatch.

The trade matters less than what the job has to do. Two businesses in completely different lines often need the same size, stock and finish, and two shops in the same trade often need entirely different ones. If your line of work is not named above, tell us what the envelopes have to do and where they will be handled, and we will tell you what suits it.

Yes. Orders are couriered anywhere in Pakistan, including Lahore, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar, Hyderabad and Quetta, and delivery within Karachi can be arranged directly. Envelopes are boxed flat in sealed packs so they arrive clean and unbent.

Pick a product from the range above and order on the site, or send your requirement on WhatsApp with the size, stock, closure, quantity and what the envelope will carry, and we will come back with a quote in PKR before anything moves forward.

Ready to print your envelopes?

Pick a product from the range above, or tell us what the envelope has to carry and send your logo on WhatsApp. We will come back with size, stock and closure options and a quote in PKR.