Meeting Upload Rules on Online Portals: File Size, Format and Naming

How to avoid rejected uploads on government, university, bank and job portals by checking file type, size, dimensions and naming before you scan.

Online portals can be picky. A rejected upload usually comes down to file size, file type or a naming issue. Checking the rules first is far quicker than scanning twice.

Read the requirements first

Before you scan, look for a list of accepted formats and limits on the upload page or in the instructions. Note:

Accepted formats: PDF, JPG, PNG, or a specific choice.
Maximum size: per file, and sometimes in total.
Minimum size or resolution: some portals reject tiny files.
Colour or black and white.
Page count.
Dimensions: for photographs and signatures.
One document per file, or several combined.

Choosing the format

PDF is the usual choice for multi-page documents.
JPG is common for photos, signatures and ID pictures.
PNG is less common, but accepted in some places.

If the portal accepts only JPG and you have a PDF, you'll need to save or scan the page as an image.

File size

Limits range widely. To meet a small limit:

Scan in black and white for text documents.
Reduce resolution slightly.
Compress the file.
Remove unnecessary pages.

To meet a minimum size, scan at higher quality, or in colour.

Photographs and signatures

Portals for applications often ask for a passport-style photo or a signature image with specific dimensions and file sizes. Take the photo against a plain background with even light. For a signature, sign on plain white paper with dark ink, and scan or photograph it cropped closely.

Naming rules

Some systems reject file names with spaces, symbols or long names. Use simple names with letters, numbers and hyphens, such as Certificate-10th-Marksheet.pdf.

Order of documents

If the portal asks for several uploads, prepare them all before you start, name them clearly and keep them in one folder. That prevents mix-ups.

Test before the deadline

Try uploading a day or two before the deadline. Portals get slower and sometimes crash at the last minute, and you'll want time to fix any issues.

Keep evidence

After uploading, save the confirmation page or email, and note the reference number. Some portals let you download a summary of what you submitted.

Common reasons for rejection

File too big or too small.
Wrong format.
Blurry or cropped scan.
Pages missing or in the wrong order.
Wrong document in the wrong field.

Keep your own copies

Store every file you upload in a folder, so you know exactly what was submitted, and can reuse it next time.

Checklist

Requirements noted.
Format, size and colour checked.
Names simple and clear.
Documents in order.
Uploaded early and confirmation saved.

Prepare portal-ready PDFs with Document Scanner →