Should Your Resume Be a PDF or a Word File?

PDF or Word: how to choose so HR can open it and systems can read it, plus how to check your file before sending, file naming, and when Word is the better choice.

You spend a whole weekend making your resume look great, fonts neat, spacing just right. You send it as a Word file, and on the HR person's computer the text shifts, page two has a single line, and half the headings are gone. This really happens, and it is why "PDF or Word?" is not a minor question.

The difference between PDF and Word

PDF is designed to look the same on any device. A Word file (.docx) is easy to edit, but how it displays depends on the program, the version, and the fonts on the reader's computer. Both have their uses, so the answer depends on who will open the file and what they will do with it.

When to use PDF

• Emailing HR or a hiring manager directly: it looks exactly as you designed it.
• A layout that needs precision, such as two columns or dividing lines.
• You do not want the content edited easily.
• The posting does not specify a format: PDF is usually the safe choice.

When to use Word

• The posting or application system asks for .doc or .docx: always follow the request.
• Applying through a recruitment agency: many reformat resumes or remove contact details before sending them to clients, so they may ask for an editable file.
• Someone is reviewing and editing it for you: Word track changes is convenient.

Can screening systems read your file?

Many companies use an ATS (Applicant Tracking System) to store and search applications. What matters more than the file extension is that the text in your file is real text the system can extract.

A one-minute self-check

1. Open the PDF and drag to select text. If you can select word by word, it is real text.
2. Press Ctrl+A, copy, and paste into Notepad. Check that the order still makes sense.
3. If the order is jumbled or parts are missing, simplify the layout.

What makes files hard to read

• PDFs scanned from paper or converted from images: the whole page is a picture, not text.
• Key information placed in images, icons or floating text boxes
• Nested tables, and contact details placed in the header or footer

A note on Thai-language resumes

If your resume is in Thai or contains Thai names, be extra careful with fonts. Some Thai fonts installed on your computer may not exist on the reader's. When opened as a Word file, the program substitutes another font, so line spacing shifts or vowels and tone marks float out of place.

• When sending a PDF, choose the embed fonts option on export, or use the program's own Save as PDF command.
• If you must send Word, use widely available fonts and open the file on another computer before sending.
• After converting to PDF, copy some Thai text and paste it. If it comes out as strange characters, systems may not be able to read the Thai text, so change the font and export again.

Name the file professionally

HR may download files from hundreds of applicants. A name like "resume_final_v3_really.pdf" is hard to find and looks untidy. Use first name, last name and role, such as "Nattaya-Srisuk-Data-Analyst.pdf". Use English characters and no spaces to avoid problems with some systems.

Other things to watch

• Keep the file small. Some systems limit upload size, so compress any images.
• If you use Canva or a design tool, export a text-based PDF and always run the check above.
• Do not password-protect the file. HR will not be able to open it and may skip it.
• Always keep an editable Word or source file so you can tailor it quickly for each role.

A good file opens looking right, and still reads clearly when you copy the text out.

How to start

1. Check whether the posting specifies a file format. If it does, follow it.
2. If not, export a text-based PDF.
3. Test selecting text and pasting it into Notepad.
4. Name the file first name, last name, role, and send a test email to yourself first.

Once the file is ready, review the content with the final resume checklist and ATS-friendly resume formats, or upload it to Resume Lab for another check.