Uganda → Gabon: Short-stay tourist

Upload a copy of your passport's data page (a one-page PDF or an image). The portal wants a passport valid for at least six months and warns you if yours expires within six months of the day you apply. Its wording ties the six months to your arrival date, so make sure you'll still have that much left when you land.

Source: Direction Générale de la Documentation et de l'Immigration (DGDI), Gabon e-Visa portal

For a child, the portal adds two documents to the list: a parental authorization and a copy of a parent's passport. It works out from the date of birth you enter whether this applies.

Source: Direction Générale de la Documentation et de l'Immigration (DGDI), Gabon e-Visa portal

Fill in the application on the portal in four steps: choose the e-visa type, complete the form, add your documents, submit. Everything must match your passport exactly. The form also asks for a contact in Gabon: a name, who you are acting for (a company, a hotel, or "myself"), and an address.

Source: Direction Générale de la Documentation et de l'Immigration (DGDI), Gabon e-Visa portal

A colour photo taken in the last 6 months, 35 × 45 mm, neither over- nor under-exposed, well contrasted, with no shadows on your face or in the background. You upload it as an image file.

Source: Direction Générale de la Documentation et de l'Immigration (DGDI), Gabon e-Visa portal

Single entry, 1 to 3 months: 70 EUR or 45,000 XAF, plus a 15 EUR file-processing fee. Multiple entry, 6 months: 185 EUR or 120,000 XAF, plus the same 15 EUR fee. The portal says you pay on arrival, when the e-visa sticker is issued at Léon Mba airport.

Source: Direction Générale de la Documentation et de l'Immigration (DGDI), Gabon e-Visa portal

For a tourism visit, the portal lists a hotel booking among the documents that must be provided for the e-visa to be issued. If you're visiting family or friends, it lists a hosting certificate instead. It doesn't say whether you upload this or show it when the visa is issued, so have it ready both ways.

Source: Direction Générale de la Documentation et de l'Immigration (DGDI), Gabon e-Visa portal

Unless your passport is on Gabon's short exemption list, you need a visa. You can apply online for an e-visa through Gabon's immigration portal (DGDI), or get an entry visa from a Gabonese embassy. The e-visa is only valid if you arrive by air at Léon Mba International Airport in Libreville, and it comes as single-entry for 1, 2 or 3 months, or multiple-entry for 6 months. The portal doesn't say what to do if you arrive any other way, so ask a Gabonese embassy.

Source: Direction Générale de la Documentation et de l'Immigration (DGDI), Gabon e-Visa portal

You can ask to extend an e-visa at the visa department of the DGDI in Libreville: a 1-month visa can be extended by 2 months and a 2-month visa by 1 month. 3-month and 6-month visas can't be extended.

Source: Direction Générale de la Documentation et de l'Immigration (DGDI), Gabon e-Visa portal

Once your application is in, the portal issues a travel authorization; it also appears in the list of documents that must be provided for the e-visa. Don't travel before the arrival date on your registration, and don't travel without the receipt. Processing takes 72 hours after your request is received and can't be made faster.

Source: Direction Générale de la Documentation et de l'Immigration (DGDI), Gabon e-Visa portal

The Embassy of Gabon in Brussels (for applicants in Belgium, the Netherlands and Luxembourg) asks you to apply in person, at least 5 clear days before you leave, with: its visa form, a passport valid 6+ months with two blank facing pages (and a copy), two colour ID photos (up to 35 × 45 mm), a flight ticket copy or return booking, travel insurance covering medical costs and repatriation, a copy of your yellow fever vaccination record, proof of accommodation, and for tourists a dated hotel reservation plus proof of your job or income. Normal processing takes 5 days and costs 110 EUR (55 EUR for a child aged 0 to 6), paid in cash and not refundable; express processing is only for business visas. The embassy calls its list indicative and may ask for more, and other embassies may differ, so check with the one you'll use.

Source: Embassy of Gabon to the Benelux (Brussels), visa types and conditions