How to approach a 2 MB or 4 MB PDF limit

This is one stricter edge case inside a broader upload workflow. Some official sources talk about 4 MB while others still force 2 MB. If your exact portal or account is still unclear, treat 2 MB as the safer target until you know the real destination.

Start with the right profile or target size first. If the file is still too large, regenerate it with that profile and let the engine adapt the output automatically before you enable any extra option.

Practical order

• Choose the profile that best matches your destination portal.
• If official guidance looks mixed between 2 MB and 4 MB, stay with 2 MB until your exact flow is clear.
• Let the engine adapt the output automatically inside that profile.
• If the portal does not explicitly ask for OCR or PDF/A-2b, leave those extras off.
• First try to get a version that already meets the required size before adding more processing.
• Check final size and readability before you upload the final PDF.

What usually makes the file bigger

• Image-heavy documents and scanned pages.
• High-detail scans and photo-heavy pages.
• OCR enabled when it is not actually needed.
• PDF/A-2b enabled even though the destination does not require it.
• Extra processing that the portal does not actually need.

What not to do

• Do not turn everything on at once "just in case."
• Do not turn on OCR first when your main goal is meeting a strict size limit.
• Do not enable PDF/A-2b unless the portal really asks for it.

What to check before upload

• The final file size.
• The readability of small text, signatures, and stamps.
• Whether the portal requires OCR or PDF/A-2b.
• Whether the portal requires images to stay in color.

Related portals: CEAC, IRCC, GENERAL for other portals.

Related guides and trust: Choose the right target size, IRCC file size limits, CEAC upload requirements, Why uploads get rejected, OCR for scanned PDFs, Privacy, prepare a sensitive PDF without uploading it.