Applying for a Thailand or Vietnam e-Visa online can save travellers time, but passport scanning and document uploading problems can make the process frustrating.
A blurry passport image, incorrect file format, reflections or missing information can lead to upload errors or requests for additional documents. Before submitting an application, travellers should understand how to prepare their passport scan correctly.
- Common Passport Scanning Problems
Applicants may experience several issues when uploading passport images:
Blurry images: Passport numbers and personal details are difficult to read.
Glare and reflections: Flash or bright lighting hides important information.
Cropped passport pages: The full passport information page is not visible.
Incorrect file size: The uploaded image exceeds the portal's limit.
Unsupported file format: The system does not accept the selected image format.
Shadows and fingers: Parts of the passport are covered.
Incorrect orientation: The image is rotated or uploaded upside down.
These problems can affect document verification and delay an application.
- Thailand e-Visa Passport Upload Requirements
Thailand's official e-Visa system requires applicants to upload their passport biodata page and a recent photograph.
Depending on the responsible Thai embassy or consulate, additional document requirements may apply.
To avoid common problems:
Upload a clear image of the passport biodata page.
Keep the full page visible.
Make sure all personal details are readable.
Avoid reflections, shadows and fingers.
Follow the file format and size limits shown by the application portal.
Check that your passport details match the information entered in the application.
The Thai e-Visa portal is available at:
- Vietnam e-Visa Passport Scanning Requirements
Vietnam's official e-Visa portal also requires a passport biodata page image and a portrait photograph.
The official application guidance specifies that the passport image must be clear and uploaded according to the portal's requirements. The current guidance also lists a maximum passport image size of 200 KB and a portrait image size below 50 KB.
Before uploading:
Photograph the passport information page directly.
Include the complete page and the machine-readable zone (MRZ) at the bottom.
Avoid flash, shadows and reflections.
Make sure the passport photograph and printed details are sharp.
Check the file size before uploading.
Official application website:
- How to Fix Passport Scanning Issues
If your passport image is rejected, try these practical steps:
Step 1: Use a flat surface
Place your passport on a clean, flat surface with enough lighting.
Step 2: Avoid camera flash
Use natural or indirect lighting to prevent reflections on the passport page.
Step 3: Capture the complete page
Make sure all four edges, the photograph, passport details and MRZ are visible.
Step 4: Check image quality
Zoom in and confirm that the passport number, name, date of birth and expiry date are readable.
Step 5: Resize the image
Use a reliable image editor to meet the portal's file-size requirements without making the text unreadable.
Step 6: Review before submission
Check the uploaded image and compare the entered information with your passport.
- Important Tips for International Travellers
Always use the official government visa portal rather than an unknown third-party website.
Do not alter passport information, digitally replace the passport photograph or remove important security details. Only adjust the image size or orientation while keeping the original information intact.
If the portal continues to reject a clear image, contact the relevant immigration authority or embassy for guidance instead of repeatedly submitting different altered versions.
Final Thoughts
Passport scanning is an important part of online visa applications for Thailand and Vietnam. Preparing a clear, complete and correctly sized passport image can help prevent common upload problems.
Before applying, check the latest instructions on the official visa portal. A few minutes of document preparation can help reduce avoidable delays during your travel planning.
For more international visa guides, passport advice and travel planning information, search for Avenix Trip on Google.
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