Under 12 MB, without losing the text.
USCIS's stated upload limit is 12 MB, but people on r/USCIS report rejections at 4–6 MB with messages like "The file you uploaded exceeds the maximum file size." Supporting documents — I-693 medicals, tax transcripts, financial records — are dense scanned PDFs that routinely come in at 8–20 MB. You can't just delete pages; you need every page. And you can't trash the quality either: USCIS officers need to read the text clearly.
CompressThis resamples the images embedded in your PDF — the scanned pages, the photos, the signatures — at a lower resolution that's still perfectly readable, and strips unused objects that bloat the file. Email-friendly mode targets ~5 MB; Aggressive mode targets ~2 MB for worst-case files. Or use "Compress to 4 MB" (type it in the target-size box) to binary-search the exact right compression level for your document. No watermark, no signup, no copy kept.
Last updated: May 2026
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