Start with language coverage rather than a national style
The 1990 orthographic agreement’s alphabet section lists 26 letters with upper- and lowercase forms and separately notes ç. A Portuguese-language document also needs its actual accented text preserved. Begin with approved wording containing the names, accents and punctuation that the project requires. Compare ação, avó, avô, pão and São Luís in the intended family. Do not remove a mark to make a decorative font appear complete. The Open Sans and Lora previews provide two independently identified starting points, not one mandatory national design.
Test both the stored character and the visible accent
Unicode’s normalization specification distinguishes canonically equivalent composite characters and combining sequences; its example pairs Ç with C followed by a combining cedilla. If copied text behaves differently from newly typed text, inspect the stored sequence rather than redrawing the mark as a floating graphic. Keep an untouched source copy, test the intended workflow’s normalized text, then inspect both display and search. Compare accented capitals at the actual line height, especially headings near a text box’s top edge. Check the exported document as well as the editor: correct spelling in the source does not by itself prove correct rendering.
Choose the quotation convention for the actual locale
Unicode CLDR’s Portuguese delimiter data uses “…” with ‘…’ inside, while its Portugal-specific data uses «…» with “…” inside. These are software locale conventions, not a command to override a publisher’s house style. Include the agreed pair in your proof and check nested quotations before delivery. The homepage’s decorative text substitutions change Unicode characters; they do not add missing Portuguese glyphs to an installed font. Preserve the ordinary-language source text for editing, searching and accessibility.
Your questions, answered.
Is there one font that all Portuguese documents must use?
No. Select a family for the document’s purpose and verify its actual characters, accents and punctuation.
Does selecting Portuguese as a language guarantee every quotation convention is the same?
No. CLDR distinguishes general Portuguese delimiter data from Portugal-specific data. Confirm the intended locale and the project’s house style.
Sources & background
Sources supporting this page’s explanations. Practical examples are our editorial suggestions.