What is the USCIS document upload size limit?

Through the my.uscis.gov portal, each supporting document upload is limited to 6MB. For very large documents, compress each page to stay within this limit.

What file formats does USCIS accept?

USCIS accepts PDF, JPEG, PNG, and TIFF. PDF is recommended for multi-page documents such as financial statements or employment records.

Can I merge large files for USCIS?

Yes, our tool handles large files locally, combining them efficiently without relying on slow internet uploads.

Merge PDF for USCIS

Combine multiple PDF documents or certificates into a single file. Control order, sort pages, and optimize output size.

Official Requirements for USCIS

To ensure your document is accepted by the United States official platform, it must meet the following strict criteria:

Maximum File Size: 6144 KB
File uploads via my.uscis.gov are limited to 6MB per document.
Accepted formats: PDF, JPEG, PNG, TIFF.
PDFs must not be encrypted or password-protected.
Ensure all text is legible — minimum 300 DPI for scanned documents.
Each supporting document must be a separate upload.

Disclaimer: These requirements are verified based on official guidelines. However, platform rules and guidelines can change. Always consult the official USCIS portal before final submission.

Common Rejection Reasons

File exceeds 6MB limit.
Password-protected or encrypted PDF.
Corrupted file that cannot be opened.
Missing pages or cut-off content due to incorrect scanning.

Official Guidelines Compliance

Merging PDF Documents for USCIS

USCIS applications frequently require the consolidation of multiple pieces of evidence—such as translated birth certificates alongside their original copies—into a single file upload. Our PDF merger allows you to seamlessly combine multiple PDF documents into one continuous file, ensuring your evidence is logically organized for the immigration officer reviewing your case.

How to Use Merge PDF for USCIS

Follow these simple steps to ensure your file meets all requirements for USCIS.

Select PDF Evidence

Upload the multiple PDF documents you need to combine for USCIS.

Arrange the Order

Drag and drop the files to ensure they appear in a logical, readable sequence.

Merge and Download

Combine the files into a single PDF and save it for your USCIS submission.

Frequently Asked Questions about USCIS

Answers to common questions regarding requirements for USCIS.

What is the USCIS document upload size limit? Through the my.uscis.gov portal, each supporting document upload is limited to 6MB. For very large documents, compress each page to stay within this limit.: Through the my.uscis.gov portal, each supporting document upload is limited to 6MB. For very large documents, compress each page to stay within this limit.
What file formats does USCIS accept? USCIS accepts PDF, JPEG, PNG, and TIFF. PDF is recommended for multi-page documents such as financial statements or employment records.: USCIS accepts PDF, JPEG, PNG, and TIFF. PDF is recommended for multi-page documents such as financial statements or employment records.
Can I merge large files for USCIS? Yes, our tool handles large files locally, combining them efficiently without relying on slow internet uploads.: Yes, our tool handles large files locally, combining them efficiently without relying on slow internet uploads.