Immigration · US

USCIS File Size Limit (12 MB): How to Compress Your PDF

USCIS rejects uploads larger than 12 MB per file. Here's how to get evidence PDFs, phone scans and translations under the limit by compressing them to about 11 MB.

USCIS Online Account file requirements

RequirementDetails
Max file size12 MB per file. The limit applies to each upload, not to your whole case.
Accepted formatsPDF, JPG or JPEG. Some forms also accept TIF or TIFF. PDF works best for multi-page evidence.
SecurityDon't encrypt or password-protect files. USCIS can't process locked PDFs.
TranslationsUpload the original plus a certified English translation. Some USCIS instructions also ask for the translator's certification.
ReadabilityEvery page must be clear and readable. Unreadable pages can lead to a Request for Evidence (RFE).

Source: USCIS: Tips for Filing Forms Online · Last verified Sep 30, 2026. Limits can change, so check the official page before you file.

Which USCIS uploads this applies to

The 12 MB limit applies to every file you upload to your USCIS online account. That includes evidence for forms you file online, such as:

  • Form I-130 Petition for Alien Relative
  • Form I-485 Adjustment of Status
  • Form I-765 Employment Authorization
  • Form I-140 Immigrant Petition for Alien Workers
  • Form I-751 Remove Conditions on Residence
  • Form N-400 Application for Naturalization

It also applies when you respond to a Request for Evidence (RFE) or add extra evidence while your case is pending. You do both in the Documents tab of your account.

Why USCIS files get too big

  • Phone photos. Phone cameras take 8 to 12 megapixel images, so ten pages of photos can become a 20 to 40 MB PDF.
  • Color scans. Birth certificates, diplomas and bank statements scanned in full color are much larger than grayscale scans.
  • Everything in one file. Combining every letter, pay stub and photo into one PDF often goes over 12 MB, even when each document was small on its own.
  • Translations. The original, the certified translation and the translator's certification can triple the page count for a single document.

How to compress a PDF for USCIS

  1. 1

    Open the compressor

    Click the button on this guide. The home compressor opens with the target already set to 11 MB, a safe margin under the 12 MB limit. Sign in if you're asked to.

  2. 2

    Upload your PDF

    Drag your evidence PDF onto the upload box, or click to choose it. Pro accepts files up to 50 MB.

  3. 3

    Compress

    Check the target says 11 MB, then click Compress. Large scanned packets take a little longer.

  4. 4

    Download and check the pages

    Open the result and look at the important pages: IDs, seals and signatures. If they're clear, upload the file to your USCIS account.

If your PDF is still too large

  • Split it into several files. Our free Split PDF tool runs in your browser. Break a long packet into logical groups (for example, identity documents, relationship evidence, financial documents), each under 12 MB.
  • Lower the target. If 11 MB still fails, try 10 MB or 8 MB. Smaller is fine as long as the pages stay readable.
  • Rescan at a lower resolution. For new scans, use 150 to 200 DPI and grayscale for text documents, and crop out the background. Avoid glare when photographing documents.
  • Remove the password. USCIS can't process encrypted PDFs, so save an unlocked copy before you upload.

Common upload problems and fixes

ProblemFix
Upload rejected because the file is too largeCompress it to about 11 MB, or split it into several files under 12 MB.
File type not acceptedConvert it to PDF, JPG or JPEG. iPhone photos are often HEIC, which USCIS doesn't list as accepted.
File can't be processedRemove any password or encryption, then save the PDF again.
Pages look blurry after compressingRaise the target (still under 12 MB), or split the file so each part can keep more detail.

Files you compress with us are deleted automatically within 2 hours, and you can delete them sooner after downloading. CompressPDFtoAnySize is not affiliated with U.S. Citizenship and Immigration Services. Always follow the instructions on uscis.gov for your form.

Frequently asked questions

What is the USCIS file size limit?▾
USCIS says files uploaded to your online account must not be larger than 12 MB each. Check the official Tips for Filing Forms Online page before you file, because limits can change.
Does the 12 MB limit apply to I-485, N-400 and other forms?▾
Yes. The 12 MB limit is part of USCIS's general rules for uploading evidence in your online account, so it applies to evidence for any form you file online, including Forms I-130, I-485, I-765, I-140, I-751 and N-400.
Can I upload more than one file?▾
Yes. Instead of one large PDF, split your evidence into several files, each under 12 MB, and give each a clear name (for example, "Marriage certificate and translation").
How do I upload documents for an RFE?▾
USCIS notifies you by text or email. Log in to your online account and respond in the Documents tab. Keep each file under 12 MB, the same as for your original evidence.
Will compressing my PDF make it hard to read?▾
Compressing to a target size lowers image resolution inside the PDF, but text usually stays readable at 11 MB. After you download, open a few pages and check that seals, signatures and small print are still clear.
Can I compress my USCIS PDF for free?▾
The free plan accepts files up to 10 MB, and a file that size already passes the USCIS limit. If your file is over 12 MB, the Pro plan compresses files up to 50 MB. If you'd rather not pay, split the PDF into parts under 12 MB with our free Split tool.
Are you affiliated with USCIS?▾
No. CompressPDFtoAnySize is an independent PDF tool and is not affiliated with U.S. Citizenship and Immigration Services. Always follow the instructions on uscis.gov for your form.

Get your evidence under 12 MB

Open the compressor with the 11 MB target already set, check that the pages are readable, and upload them to your USCIS account.

Related guides