[Bug]: Resume Analyzer accepts PDF files larger than 5MB

[kumud-05]

Bug Description

The Resume Analyzer UI states that PDF resumes are supported up to 5MB, but the frontend does not currently validate the uploaded file size.

The application only checks whether the selected file is a PDF. As a result, PDF files larger than 5MB can still be selected and submitted for analysis.

Steps to Reproduce

1. Go to the Resume Analyzer page.
2. Click the resume upload area.
3. Select a PDF file larger than 5MB, or drag and drop one into the upload area.
4. Observe that the file is accepted and displayed.
5. Click "Analyze Resume".
6. Observe that the oversized file is sent for analysis.

Expected Behavior

PDF files larger than 5MB should be rejected before they are submitted for analysis.

The user should see a clear error message such as:

"File size must be less than 5MB."

The oversized file should not be sent to the analysis API.

Actual Behavior

PDF files larger than 5MB are accepted by the frontend even though the upload interface states that the maximum supported size is 5MB.

There is currently no file-size validation in the file selection or drag-and-drop handlers.

Severity

Medium

Screenshots / Screen Recording

No response

Browser

Chrome

Operating System

Windows 11

Additional Context

Hi! I'm a GSSoC 2026 contributor. Kindly add the GSSoC label/badge to this issue if applicable. Thank you!

[github-actions]

Thanks for creating this issue!

If you'd like to work on it, simply comment:

/claim

The first person to claim the issue will be assigned automatically.

Happy contributing!

[dpi26]

/claim

[github-actions]

✅ @dpi26 has successfully claimed this issue!

You've been assigned. Happy coding!

Tip: Please open a Pull Request linked to this issue when you're ready.
Add Closes #1865 in your PR description.