How to Compress a PDF for USCIS Immigration Upload (Under 6 MB)
USCIS's online filing system caps each uploaded PDF at exactly 6 MB. Your scanned passport, marriage certificate, or tax transcript is almost always bigger. Get it under 6 MB without losing the legibility USCIS officers need to approve your case.
The problem
You're filing I-130, I-485, N-400, or H-1B online and the upload silently fails (or rejects with a vague error) because your PDF is 7–15 MB. Resubmitting the wrong file delays your case weeks. Most online compressors require uploading sensitive personal documents — passports, birth certificates, tax returns — to their servers.
Use the tool now
Open the compress pdf tool and follow the steps below.
Step-by-step
- 1
Confirm the 6 MB rule
USCIS online accounts cap individual PDF uploads at 6 MB (some forms allow up to 12 MB — check your specific form's instructions). Aim for under 5.5 MB to leave headroom.
- 2
Open the Compress PDF tool
Drop your supporting evidence PDF into the embedded tool below. Processing is local — passports and birth certificates never leave your device.
- 3
Pick "High Compression"
For typed documents (tax returns, employment letters), High keeps text crisp at ~80% reduction. For photo scans (passports, marriage certificates), use Aggressive at first.
- 4
Verify legibility before uploading
Open the compressed PDF and zoom in on small text — name fields, signature lines, dates. If anything is illegible, redo with a milder setting.
- 5
Upload to USCIS
Confirm size is under 6 MB in your file manager. Upload to the relevant evidence slot in your USCIS online account.
Pro tips
- •For multi-document evidence (multiple bank statements, multiple pay stubs), merge them into one PDF first, then compress — one well-organized 5 MB file beats five separate uploads.
- •USCIS officers reject illegible documents. Don't over-compress to the point names blur. Aim for "small but readable."
- •Passport photos in PDFs compress hardest because they're embedded high-res images. Crop white space first using Crop PDF.
- •Always keep the uncompressed original. If USCIS asks for clarification, you can resubmit a higher-quality copy via RFE response.
Frequently asked questions
What's the actual USCIS file size limit?
For most online forms (I-130, I-485, N-400), individual PDF uploads are capped at 6 MB. Some I-129 forms allow up to 25 MB. Always verify on your specific form's instructions page.
Will USCIS reject a compressed PDF?
No — compression is fine and routine. USCIS only rejects illegible documents, regardless of how they got that way. Verify legibility before submitting.
Is it safe to compress sensitive immigration documents in a browser?
PDFShed processes everything client-side via WebAssembly. Your passport, birth certificate, and tax data never reach our servers. There's nothing for us to leak.
My evidence is 30 MB even after compression. What now?
Split the file by category (bank statements separately, tax returns separately) using Split PDF, compress each part, and upload as separate evidence pieces. USCIS accepts multiple PDFs per evidence requirement.