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How to Prepare Documents for Online Portals, Visa Applications and Job Sites

By Rashad (Razzath) · Updated November 7, 2026

Why uploads get rejected

Many application portals reject files for simple technical reasons. The file is too large, in the wrong format, rotated, unreadable, or password protected. The error messages are rarely helpful, so it pays to check everything before you upload.

Always read the portal's own instructions first. Limits, accepted formats and naming rules differ from site to site.

Check the format and the size

Most portals accept PDF, JPG or PNG. If you have photographs of documents, you can turn them into a PDF with Image to PDF. If a file is over the limit, use Compress PDF, or split a long document into parts.

Do not shrink more than necessary. A passport photo page or a certificate must stay readable. Zoom to 100 percent and check that every line of text is clear.

Make every page easy to read

Use good light and a flat surface when scanning with a phone. Avoid shadows, keep the page edges inside the picture, and hold the camera directly above the page. Rotate pages that came out sideways, and delete blank or duplicate pages.

Combine and name files sensibly

If the portal wants one file, merge your documents in the order requested. If it wants several, name them clearly, for example 'passport-copy.pdf' and 'bank-statement-october.pdf'. Avoid special characters and very long names.

Remove passwords and extras

Portals often cannot open encrypted files, so remove passwords before uploading. If you must keep the content private on the way, send the password separately or use the portal's secure channel. Do not add watermarks unless asked.

A final checklist

Open the file you are about to upload as if you were the reviewer. Is every page there? Is the order right? Can you read the smallest text? Is the size within the limit? Keep copies of everything you submitted, together with the confirmation message.

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About the author: Written by Rashad (Razzath), the independent developer behind PDF DocOffice in Dubai, UAE. Last updated November 7, 2026. Spotted a mistake or have a suggestion? Tell us and we will correct it.