Translate PDF to Chinese (Traditional)

No, and treating it that way is the single most common source of wrong output. The script reforms merged characters as well as simplifying them, so the mapping back is one to many. The simplified 发 is 發 for issue and 髮 for hair; 干 corresponds to 乾, 幹 and 干 depending on sense. A lookup table cannot choose between them because the choice depends on the meaning of the sentence, which is why translating is more reliable than converting.

Decide before you start, because the vocabulary genuinely differs. Taiwan writes 軟體 and 網路 where Hong Kong writes 軟件 and 網絡, and the divergence runs through technical, financial and medical terminology. Taiwan and Hong Kong also follow different standard character form lists. If the document is going to a specific institution, match that institution; if it is for a general traditional character readership, Taiwan usage is the broader default.

Output embeds a font with full traditional character coverage, so dense forms like 灣, 體 and 豐 appear as themselves. The classic failure is a document set in a font built only for simplified Chinese: it simply has no glyph for many traditional forms and the reader gets hollow boxes. Hong Kong material needs an extra step because Cantonese specific characters and local name characters live outside the common set.

Almost certainly a Big5 encoded file being read as something else. Big5 was the standard for Traditional Chinese before Unicode took over, it covers around thirteen thousand characters, and it leaves out much of what Hong Kong needs, which is why a supplementary set had to be defined. If reopening with the correct encoding does not recover the text, supply the document as a scan and let the printed characters be read as images instead.

Usually. A Chinese sentence needs noticeably fewer characters than its English source, although each character occupies a wider cell than a Latin letter, so the saving is smaller than the raw character count suggests. On a text heavy report the practical effect is a shorter block with white space where the English filled the column, and the layout is re-flowed rather than left with holes in it.

Where the source uses top to bottom columns running right to left, which is still normal for Taiwanese books, some newspapers and formal certificates, that structure is carried over rather than flattened into horizontal lines. Mixed documents with a vertical body and horizontal headings or tables are common and are handled section by section.

Characters such as 嘅, 咗 and 冇 belong to written Cantonese rather than to standard written Chinese, and they turn up in quoted speech, in transcripts of testimony, in advertising and in messaging. They are recognised and rendered rather than dropped. Be aware that a Hong Kong document mixing formal written Chinese with quoted Cantonese is effectively two registers on one page, and the translation should reflect that difference.

It is enough to read one and to work out what it says, which is often all you need. It is not enough for the filing itself. A 戶籍謄本 submitted to an immigration authority, a court or a probate process needs a certified translation signed by a translator attesting that it is complete and accurate, and these transcripts are dense with kinship terms and dates where an error is expensive.