English to Odia, and Odia to English
Both directions work the same way. A Word file is edited where it stands: every paragraph style, table, list, header, footer and page setting stays the file’s own and only the words change, so a Odia circular comes back as an English circular, and an English notice as a Odia one, with its centred heading, numbered list and bordered table where they were. A PDF with selectable text is first turned into a Word file and then translated, so the result is a Word file you can edit, and how closely it follows the PDF is the PDF-to-Word conversion’s doing.
Translated Odia is set in Noto Sans Oriya, as real Unicode text you can search and edit; if that font is not on your computer, choose any Odia font in Word. Numbers, dates, section references, amounts, times of day, e-mail addresses and web addresses are taken out before a sentence is sent and put back afterwards, and an answer in which one does not come back exactly once is not accepted. A sentence that still cannot be translated stays in the source language and is highlighted yellow; it is never dropped, and never filled in with a guess.
What to read carefully in the Odia
In the English-to-Odia and Odia-to-English directions the test notice came back clean: every item kept, the word for rupees, ଟଙ୍କା, put before the figure as Odia writes it, and an English reading that matched the source sentence for sentence.
One pair is weaker. Translated from Odia into Assamese, a sentence sometimes stays in Odia, which the machine checks catch: only about 60% of that output was in the Assamese script. Such a sentence is highlighted, not hidden, but if you need Assamese from an Odia document, translate it into English first and read the result.
What was measured for Odia
Before Odia was switched on, the production pipeline translated the test notice from English into Odia and back. In both directions 6 of 6 protected items came back exactly: the section reference, the year, the date, the amount, the e-mail address and the web address. The Odia side was written in the Odia script, and the English read back close to the original. A Word notice with a heading, a centred line with a bold date, a numbered list, a table, a tab, a header and a footer was also translated into Odia and back, and its paragraph settings, table grid, page setup, header and footer were identical to the source, on the same number of pages.
That is a check of the machinery, not of the language. It says the tool kept your numbers and your layout; it does not say every sentence reads the way a Odia writer would put it.
Odia in a scan or an old font
A scanned PDF has no text to translate, so it is refused rather than guessed at. Read it first with Odia OCR, correct what needs correcting, and translate the Word file that comes out. Odia set in an old font such as Akruti Oriya pastes as Latin letters; convert it to Unicode with the legacy converter first, then translate.
Footnotes, endnotes and comments are not translated yet, and the result says so. Text inside a picture is not translated. Odia OCR reads scans of printed Odia, and its Word file can be translated straight away.