Certificates, manuscripts, passports, books and magazines — flat, dry and corner-protected.
Documents and books are among the simplest items to pack for international shipping, but small mistakes cause disproportionate damage: a bent certificate corner, a water-stained passport, or a book spine split from being overpacked. The main risks are moisture (rain ingress during collection or delivery), bending (from insufficient rigidity in the outer envelope), and corner crushing (from improper fit in the envelope). For legal documents, certificates and passports, always use a rigid cardboard-backed envelope with a polythene inner sleeve. For books and magazines, use cardboard wrapping or a book mailer designed to resist bending.
Determine the category: (1) flat legal/personal documents (certificates, passports, contracts), (2) printed books or magazines, (3) manuscripts or original artwork. Each requires a slightly different approach — flat documents need rigidity, books need bending resistance, manuscripts need both.
Slide the document or book into a clear polythene zip-lock bag and seal it. This is the single most important step — couriers' vans and warehouses are not waterproof, and even a minor rain event during collection or delivery can damage unprotected documents.
Cut two pieces of rigid cardboard slightly larger than the document. Sandwich the bagged document between the two cardboard pieces. This prevents bending, which is the number one cause of document damage in transit.
Slide the cardboard sandwich into a board-backed envelope (rigid envelopes designed for document mailing). The envelope should be snug — not so tight that it compresses the document, not so loose that the document shifts inside.
Wrap the book in a polythene bag first, then slide into a corrugated book mailer or wrap in corrugated cardboard secured with tape. The wrap must resist the bending forces applied by courier sorting machinery — limp padded envelopes are not strong enough for books.
Seal the envelope or mailer securely. Write 'DO NOT BEND' in large letters on the front and back. Attach the shipping label to a flat face and cover with clear tape. For passports or irreplaceable documents, photograph both sides of each document before sealing.
Using a standard padded envelope (bubble mailer) for flat documents — these flex and bend under conveyor belt pressure. Use rigid board-backed envelopes only.
Not moisture-protecting documents — polythene bag insertion takes 10 seconds and prevents catastrophic water damage.
Choosing an envelope that is too large — oversized envelopes allow the document to slide around and bend against the corners.
Folding documents to fit a smaller envelope — never fold certificates, contracts or passports. If the document doesn't fit, use a larger envelope.
Writing the address directly on a bubble mailer without a label — ink smears when wet and becomes unreadable. Always use a printed or written label covered with clear tape.
Sending originals without retaining copies — always keep a copy of any legal document before shipping the original internationally.
Write 'DO NOT BEND — DOCUMENT ENCLOSED' on both sides of the envelope in large letters — this is not guaranteed but does make handlers more careful.
For urgent legal documents (contracts, affidavits), use courier express services with guaranteed next-day or 2-day delivery to minimise transit risk.
Insert a copy of the delivery address inside the envelope alongside the document — if the outer label is damaged, the item can still be delivered.
For antique books or first editions, wrap in acid-free tissue paper before the polythene sleeve to prevent long-term chemical damage.
For multiple books in one shipment, wrap each book individually and stagger them slightly in the box to avoid corner-on-spine impacts.
Keep the air waybill (tracking number) printed inside the envelope for important documents — this helps trace a package that has been delayed or separated from its label.
Yes, passports can be shipped internationally by courier (DHL, FedEx, UPS). Use a rigid board-backed envelope with a polythene inner sleeve. Always use a tracked and signed-for service, and purchase declared value insurance. Check if the destination country has any restrictions on the import of identity documents.
Use a corrugated book mailer or wrap the book in corrugated cardboard. Moisture-protect it first with a polythene bag. For a single book under 1 kg, compare DHL, UPS, DPD and GLS rates on Cargosender — envelope rates are significantly cheaper than parcel rates for flat items.
Only for informal documents where minor bending is acceptable (e.g. a printed brochure or magazine). For certificates, contracts, passports, diplomas or any document where bending is unacceptable, use a rigid board-backed envelope with cardboard stiffeners.
Roll the document into a tight cylinder (drawing side out) and slide into a purpose-made postal tube. Seal both end caps with tape. Label the tube and write 'DO NOT CRUSH' on it. Tubes are available in most stationery shops in A0, A1, and A2 sizes.
All international courier shipments go through customs screening which may include X-ray scanning. Documents pass through X-ray without damage. If your envelope is selected for physical customs inspection, an officer may open it — include a note explaining the contents and use a resealable inner polythene bag if this is a concern.
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