I found a mistake after delivery — how is it corrected?
Tell the practitioner, point to the exact line, and attach the source evidence such as the passport page. They reissue a corrected version, freshly signed and stamped. Never edit the file yourself — doing so voids the certification.
In-depth Answer
A certified translation is the practitioner's statement that the text matches the document they received.
Any change must therefore be made by the person who signs it.
If the client opens the PDF and fixes a spelling themselves, the attached certification no longer describes the file that was signed, and the document counts as altered without authority — a serious matter in a visa process.
The correct step is an email quoting the job reference, page, and line, with evidence of what the correct data is: the passport page or the house registration.
Where the fault is the translator's — a mistyped figure, a dropped line — a provider working to standard reissues at no extra charge.
Where the source data itself changed, or new documents arrive afterwards, that is new work.
Related questions
Documents most Australia visa applicants translate into English
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