Letterhead that complies.
In two minutes.

In DIN 5008 Form B (the prevailing European standard for commercial letterheads), the header zone occupies the top 45 mm. The standardized recipient address window is exactly 85 mm wide and 45 mm high, located exactly 45 mm from the top sheet edge and 25 mm from the left edge. This includes a 5 mm single-line return address zone and up to 6 lines for the recipient, fitting DIN Lang (DL) and C6/5 window envelopes with zero clipping.

DIN 5008 Form A provides only a 27 mm top header zone, meaning the address field begins at 27 mm from the top. Form B offers an expanded 45 mm header zone, which is the modern standard for corporate correspondence because it provides ample space for company logos, claims, slogans, and multi-column contact details without intruding upon the recipient address field.

Standard browser print-to-PDF functions frequently round sub-pixel heights up to the next integer, exceeding 297 mm by a fraction of a millimeter and generating an empty second page with a stray line. TwiceDocs renders the letterhead through a dedicated 300 DPI high-density canvas engine with fixed physical millimeter bounds, locking the output to an exact, uncompromised single page.

Desktop office printers print directly onto trimmed 210 × 297 mm paper. Commercial online print houses (e.g., Flyeralarm, WirMachenDruck, Saxoprint) require an additional 3 mm bleed margin on all four sides (data format 216 × 303 mm). TwiceDocs's Print-Shop Export automatically expands the document canvas to 216 × 303 mm, extends background artwork into the bleed zone, and injects fine hairline crop marks for guillotine cutting.

Desktop Microsoft Outlook renders emails using Microsoft Word's legacy HTML engine, which breaks modern web flexbox, CSS grid, and millimetric positioning. TwiceDocs translates your letterhead into a strictly compliant 600 px nested-table layout with 100% inline CSS, ensuring identical presentation across desktop, webmail, and mobile apps.

① Copy Formatted (Ctrl+V): Paste rendered letterhead straight into Gmail or Outlook.
② Copy HTML Code: Pure inline table markup for signatures and CRM mailers.
③ Download .html: Standalone clean template file.

Yes, unconditionally. TwiceDocs operates with zero backend servers for document processing. Your corporate data, banking credentials, customer addresses, and uploaded logos are processed entirely within your local browser memory and stored offline in your browser's private IndexedDB database. No data is ever transmitted across external cloud servers.