The passport bio-page scan is the second-most-common Aussie eVisa rejection after the photo — but the easiest to fix. Five rules, five minutes on an iPhone or Android, no flatbed scanner required.

Phone camera in daylight, passport flat on a contrasting surface, BOTH edges of the bio page visible, all text including the MRZ legible, no glare on the laminate. Don't use flash. Don't crop tight — leave a small border. JPEG file under 2 MB, ideally 1500×1000 px or larger. Five minutes on an iPhone or Android usually nails it. About 8% of Aussie eVisa rejections are passport-scan issues (glare, partial cropping, or low resolution) — almost all fix with one retake.
The bio page is the part of your Australian passport that has the photo on it — name, date of birth, passport number, issue and expiry dates, the MRZ (machine-readable zone) along the bottom. That is the page Cambodian Immigration needs to see; not the cover, not the visa-stamp pages, not the back endpaper. Sounds obvious, and the wrong-page mistake still accounts for about 1% of all scan rejections — usually someone scanning the cover by accident, or the inside front page with the embossed coat-of-arms but no biographical detail. The Cambodia eVisa documents required for Australians piece covers the full five-item checklist if you need the wider context. Our official Cambodia eVisa for Australians pulls all the pieces — cost, documents, processing — into one place.
This guide is the same internal playbook we use on the scan-QA desk. The five rules that decide whether a scan passes, a step-by-step phone walkthrough you can run through right now at your kitchen table, the common Aussie mistakes ranked by frequency, and the HEIC-to-JPEG fix iPhone users keep tripping over. A compliant scan is a five-minute job. When you are ready, the application takes about ten minutes online and three business days for approval. The Australian application walkthrough covers the full end-to-end, and the Do Australians need a Cambodia visa explainer is the right starting point if you have not begun yet.


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首次赴柬埔寨旅行?以下是面向美国人的诚实首次旅客清单——签证、美元货币特点、安全现状、疫苗接种、寺庙着装规范,以及2026年新机场的实际抵达体验。
自2025年6月以来,泰国与柬埔寨之间的全部七个陆地边境已关闭,因此在2026年,美国人从泰国进入柬埔寨的唯一方式是乘坐飞机。以下是曼谷至暹粒和曼谷至金边航线的工作方式、登机前所需的柬埔寨电子签证,以及为何旧的波贝陆路计划已不再可行。
三种方式跨越柬埔寨首都与吴哥窟之间的195英里:15美元的特快巴士、45分钟的航班或缓慢的河流渡轮。以下是每种方式对美国旅行者的实际费用、所需时间以及哪种适合您的行程。


Bangkok in, Siem Reap out — but the land border's closed.
Read the 2026 update →Classic Indochina pairing. Phu Quoc beaches are visa-free for 30 days.
See the combo guide →Overlooked third stop on the Indochina loop.
Plan the Laos route →Where most Aussies stop on the way through.
Sort the stopover →Bali or Cambodia for your next trip — or both?
Compare the two →Five rules, one phone, five minutes. The passport bio-page scan is one of the simpler steps in the Cambodia eVisa application, and it is the easiest of the common rejection causes to fix on a first retake. Flat surface, side daylight, no flash, both edges in frame, MRZ in focus, JPEG under 2 MB. That is the whole job. Almost 92% of Aussie phone-camera scans pass first time when you follow the routine. If you want the wider context, the Cambodia eVisa photo requirements piece covers the other big upload step, and the passport validity rules guide covers the 6-month and blank-page requirements that need to be sorted before you even start the scan.
If your application has already been flagged for a scan issue, do not start over — reply to the email with the corrected file and the processing clock restarts the moment the upload lands. The Cambodia eVisa rejected — what to do guide walks through the recovery path step by step. For Aussies who would rather skip the desktop step entirely and do the whole application from the phone, the mobile application step-by-step is the right starting point. The Smartraveller advisory is also worth a five-minute read for the current Cambodia travel context, and the Australian Passport Office is the canonical source for any AU-passport-side questions about renewals, replacements, or damaged passports.
Next steps and related reading for Australians: apply for your Cambodia eVisa when you are ready to lodge, bookmark our Cambodia visa hub for Australian citizens as the single canonical reference, skim the FAQ on Cambodia visa eligibility for quick answers, and use our glossary of Cambodia visa terms to decode any acronym in this guide.