USCIS Online Filing: How to Prepare Evidence Uploads

If you file a form online with USCIS, you upload your evidence yourself instead of mailing copies. The rules on the official "Tips for Filing Forms Online" page are short: files must be PDF, JPG or JPEG (some forms also take TIF or TIFF), each file can be no larger than 12 MB, and you must not encrypt or password-protect anything. Every image has to be clear, with all text readable.

This guide turns those rules into a routine you can follow for a birth certificate, a marriage certificate, tax transcripts, pay stubs or anything else your form asks for. The limits are the ones USCIS published when we checked in September 2026. If the upload screen for your form shows something different, the screen wins.

What USCIS actually asks for

According to the USCIS tips page:

• Formats: PDF, JPG or JPEG. Some forms also take TIF or TIFF.
• Size: no file larger than 12 MB.
• Security: no encryption and no passwords.
• Quality: use a scanner or take a picture of each document, and make sure every image is clear and all the text can be read.
• Foreign-language documents: upload a certified English translation in addition to the original.
• Passport-style photos: if your form requires them, scan the photo or take a picture of it with your phone.

The page doesn't set rules for file names or for how many files you can upload. The rest of this guide is practical advice for staying well inside the published rules, not extra USCIS requirements.

Step 1: Capture each document clearly

The most common reason evidence causes trouble is legibility, not size. A crooked phone photo with a shadow across the seal is a bigger risk than a file that's a bit heavy.

1. Put the document on a flat, dark surface in even light. Daylight from a window works well; avoid the flash on glossy certificates.
2. If you don't have a scanner, use Scan to PDF. It opens your phone or computer camera in the browser. You drag the four corners to crop the page, and perspective correction straightens it.
3. Pick a filter. Grayscale or black and white (document) makes text sharp and keeps files small. Keep original for anything where color matters, such as a stamp, a colored seal or a photo ID.
4. Add all the pages of the same document in order, such as front and back of a card, or every page of a tax transcript. Delete any bad shots before you create the PDF.
5. Choose the page size: Letter, A4, or the same as the photo. Letter is the natural choice for US paperwork.

Scan to PDF runs in your browser, so the camera images and the finished PDF stay on your device.

Step 2: One document, one file

USCIS doesn't say how to group pages, but uploading each document as one complete file makes it easier for an officer to follow. A good pattern:

• One PDF per document: birth-certificate-maria-lopez.pdf, marriage-certificate.pdf, 2025-tax-transcript.pdf.
• The original and its certified translation next to each other, and clearly named: birth-certificate-original.pdf and birth-certificate-translation.pdf. You can also combine them into one file if the upload slot only accepts one.
• Plain file names without special characters. It isn't a stated USCIS rule, but a clear name costs nothing and helps you check your own uploads.

If you scanned pages separately, Merge PDF puts them back together. Drag the files into the right order and download a single PDF. Pages are copied without recompression, so merging doesn't lower the quality.

Step 3: Get every file under 12 MB

Phone scans with lots of color can grow fast, especially long documents like bank statements. If a file is over the limit:

1. Open Compress PDF and try the Recommended level first.
2. Check the result. Compress PDF shows the size before and after, and only the photos inside the PDF are recompressed. Any real text layer stays selectable.
3. If you want extra room below the limit, use the "Compress to X KB" mode and type a target, for example 8000 KB. The tool lowers image quality step by step until it's under the target. If it can't get there, it gives you the smallest version it could make and explains why.
4. Zoom in on the compressed file before uploading. If small print, dates or signatures look blurry, go back to a lighter setting and split the document into two files instead.

A file that is mostly real text (not a scan) usually shrinks very little, because there are few images to recompress. If that file is still too big, it probably has very many pages. Split it at a logical point (for example, by year) rather than squeezing it until it's unreadable.

Step 4: Remove passwords before you upload

Bank statements, payroll exports and some government PDFs come with passwords or restrictions. USCIS says not to upload encrypted or password-protected files. If you have the right to open the document, use Unlock PDF: type the password, and the tool removes it along with owner restrictions such as no-printing or no-copying. It doesn't guess or crack passwords, so you need the real one.

Common mistakes to avoid

• Uploading only the translation. USCIS asks for the certified English translation and the original.
• Cropping off edges. Seals, registration numbers and signatures often sit near the margins. Crop close, but don't cut the page.
• Mixing people's documents in one file. Keep the applicant's and the beneficiary's evidence in separate, clearly named files.
• Compressing until it's unreadable. A smaller file is never worth an illegible date or name.
• Uploading the wrong version. Before submitting, open each final file once more and check the page count and page order.

If the upload is rejected

Check the three published rules first: format (PDF, JPG, JPEG, or TIF/TIFF only if your form allows it), size (12 MB or less) and security (no password). Then re-save the file with one of the tools above and try again. If a PDF won't open at all, it may be damaged. Re-scan the original rather than uploading a broken file. If the online system itself is having problems, the USCIS "Online Filing Options" page links to the current help channels.

Quick checklist

• Every page readable at normal zoom.
• One clear file per document, with translations included.
• Each file 12 MB or less, in an accepted format.
• No passwords or restrictions.
• Final files opened and checked before you click submit.