PDF Guides
Preparing PDF Documents for a Thailand Visa or Work Permit
A Non-Immigrant B visa and a Thai work permit typically involve submitting a bundle of personal documents alongside paperwork from your employer. Requirements, forms, and processing details can change and vary by case, so this covers the practical side — getting your documents into clean, well-organized PDFs — rather than the legal requirements themselves. Always confirm current specifics with your employer, an immigration lawyer, or the relevant Thai government office before you apply.
By GaryLast updated 3 min read
Documents commonly requested on the personal side
Application checklists for this process generally include your passport, passport-style photographs, educational certificates, a CV, and a medical certificate, in addition to forms and an employment agreement provided or reviewed by your employer. Exactly what's needed for your specific case can vary, so treat this as a general starting point, not a definitive checklist.
How to prepare what you're asked for
Once your employer or immigration contact confirms exactly what's needed, the PDF preparation itself is straightforward.
- Scan each document clearly and completely — cropped edges or blurry text are a common cause of delays
- Keep each document as its own clearly named PDF unless you're specifically asked to combine them
- Compress large scans if a portal or email has a size limit, while keeping text and photos legible
- Double-check page order and completeness before submitting anything
Why this article doesn't list specific current rules
Visa and work permit requirements, forms, and processing details are set and updated by Thai government offices and can change. Rather than risk stating something outdated or incomplete, this guide sticks to document preparation — the part that stays the same regardless of the current rules. Confirm what's actually required for your situation with your employer, an immigration lawyer, or the relevant government office directly.
Scanning a passport properly
The passport is the document most often scanned badly. Open it flat to the photo page and photograph the whole two-page spread, so the machine-readable lines at the bottom are complete and nothing is hidden in the fold. Avoid flash, which bounces off the laminate; daylight from the side works better. If you are asked for pages with visas and entry stamps as well, scan them in page order and keep them in the same PDF as the photo page.
Scan to PDF places each photo on a page as taken. Trim background with Crop PDF and turn sideways pages with Rotate PDF before you combine anything.
Degrees, translations and stamps
Educational certificates are sometimes requested with a translation or with certification stamps from an embassy or ministry. Your employer or lawyer will say whether that applies to you. Where it does, scan the complete document, including the back, because certification stamps are usually placed there. Keep each original and its translation together in one PDF, original first, so the two can never be separated or mismatched.
Two channels, two sets of files
You are often preparing for two different readers. Your employer's HR team or lawyer usually wants documents by email. A government online system, where one is used for your application, has its own upload screen that states the accepted format and size for each document. Prepare a full-quality master set first, then make smaller copies for whichever channel needs them, and never overwrite the masters.
- Scan everything once at full quality and save it in a folder named Masters.
- Name each file with your surname and the document, such as SURNAME-passport.pdf and SURNAME-degree.pdf.
- For email, check the total size of the attachments. If it is too large, compress the scans on Balanced or send them in two messages.
- For an online form, read the limit beside each upload field and make a copy that meets it.
- Open each copy at full zoom and confirm the passport number, names and dates are sharp.
Photos and medical certificates
A photograph for the application normally has to be supplied as an image file, not inside a PDF, and to a stated specification. Take that specification from whoever is handling your application. A medical certificate is a single page with a doctor's signature and a clinic stamp; scan it in colour so the stamp is clearly a stamp and not a grey smudge.
Sending sensitive documents
A passport scan and a degree certificate together are enough to cause real trouble in the wrong hands. Send them only to an address you have confirmed belongs to your employer or lawyer. If you want an extra layer for email, Protect PDF adds a password, which you should pass on by phone or a separate message. Do not password-protect files you upload to a government form, since the officer needs to open them.
Frequently asked questions
Where can I find the current, official requirements?
Check directly with the Thai embassy or consulate handling your visa, the Department of Employment for work permit specifics, or an immigration lawyer familiar with your situation — requirements can change and vary by case.
Should I combine all my documents into one PDF?
Only if you're specifically asked to. Many applications expect each document as its own file, so check the instructions you've been given before combining anything.
Is my document uploaded to a server when I scan or compress it here?
No. Both tools run entirely in your browser, so your files never leave your device before you submit them yourself.
Should I scan in colour or black and white?
Colour, unless you are told otherwise. Stamps, seals and passport pages are much easier to verify in colour. Convert to greyscale only if a size limit forces you to and the document has no coloured stamp.