Documents for the AIMA portal: how to get under 1 MB

If the AIMA portal rejects a document, size is the most likely reason. Reduce the file here, without uploading it.

Your files never leave your device
Source: AIMA Portal de Serviços FAQ (in Portuguese): aima.gov.pt. The answer to the question about the error when uploading documents states a maximum size of 1 MB. Checked 25 Sep 2026.
Choose or drag your images JPG, PNG or WEBP · add several (for example front and back) and reorder them afterwards

If you choose a limit, we lower quality and page size only as much as needed to meet it.

How to fit a document under 1 MB

  1. Photograph or scan each document in good light, on a flat surface, with all four corners visible.
  2. Choose the images above. If the document has a front and a back, choose both: they go in the same PDF, in order.
  3. The limit is already set to 1 MB. Click Create PDF.
  4. Upload the PDF to the portal. Make one PDF per document.

Tips to keep it readable and small

Other useful pages

This site is independent and is not affiliated with AIMA, IMT or any public body. The information is general and is not legal advice. Limits and requirements can change: always confirm what the portal shows on its upload screen.

Frequently asked questions

Are my documents uploaded to a server?

No. The PDF is created and reduced on your phone or computer. Nothing is sent anywhere, which matters for identity documents.

Can I upload a photo instead of a PDF?

It depends on what the portal accepts; check the upload screen.

I have several documents. Should I make one PDF?

Make one PDF per document, each with its own pages (for example front and back). That way each file respects the limit.

Is the limit still 1 MB?

It is what the official FAQ said on the checked date above. Limits can change; the portal's upload screen is the reference.