Choosing OCR languages correctly in multilingual matters

A pleading in German, exhibits in English, an authority page with Polish names: multilingual matters are routine in cross-border disputes, M&A and immigration work. OCR that vaguely “expects German” then misreads special characters, splits names and makes later search useless.

Language settings are not a side switch. They steer character sets, hyphenation patterns and often digit recognition in mixed layouts.

One document, several languages

Many engines allow a primary language plus secondary languages. Use that deliberately: primary for the procedural language of most pages, secondary for exhibit clusters. A blunt “all languages at once” without priority sometimes creates more confusion than benefit - especially between similar-looking glyphs.

Split packs when you can: German pleadings in one run, foreign-language exhibits in a second with matching settings. It costs one step and saves proofreading of proper names.

Where spot checks should aim

Check deliberately: names with diacritics (ł, ń, é, ø), matter references mixing letters and digits, amounts with thousand separators, addresses with country-specific abbreviations. That is where wrong language settings show. A page “looks fine” in a thumbnail and is still wrong in the text layer.

LexLogik and comparable tools assume the source language fits the engine; the professional choice stays with the team that knows the matter.

Team standard for recurring matter types

For typical matters (for example German-English contract disputes, German-French correspondence) define a preferred OCR configuration and document it in one line. Cover staff should not guess. When a rare language appears once, manual correction of critical fields often beats risky automation.

Checklist before export

• Primary and secondary languages set deliberately, not left on default.
• Critical proper names checked against the original scan.
• Search in the result PDF: can you find the matter reference and client name?
• On mixed layouts, check tables and stamps extra carefully.
• Record the language setting in a short process note if a later re-run is needed.

When portals and opponents expect different character sets

Some filing channels normalise umlauts or diacritics differently from your local search. So check not only the text layer internally, but also an exported or uploaded test page when the channel is known. For names from identity documents: match the identity document, not “phonetically close”.

For recurring language pairs a one-line team note in the matter standard helps (“DE primary, EN secondary, PL exhibits-only run”). That saves debate under time pressure and makes cover reliable.

Multilingual work is no longer a fringe topic. Treat OCR languages like deadlines - ahead of time and documented - and you avoid silent errors that only become embarrassing at the hearing. Technique follows the matter’s language choice, not the other way round. Fix it once in the matter note and you spare the same debate in every later deadline round.

Language profile per matter type

For recurring matters (cross-border sales, asylum, IP), set a default language profile: primary language, allowed secondary, who approves deviations. Support does not pick “all languages” just because the menu offers it.

The right OCR language saves rework on matter numbers and proper names. A matter profile plus a sample of critical terms after the run keeps multilingual packs filing-ready - without guessing every time.