UnderByte
Compress images and PDFs to exact size limits
UnderByte launched on April 26, 2026 with 3 votes, #2,709 of 21,248 launches that month and more than 50% of that year's launches.
What it does
UnderByte compresses images and PDFs to the exact upload limit you need, like 20 KB, 200 KB, 500 KB, or 1 MB. Everything runs in your browser, so files stay on your device after the app loads. It handles JPG, PNG, WebP, and PDF, supports batch mode, and is built for real-world government, visa, job, and form-upload size limits.
Make PDFs, photos, signatures, and images fit strict upload limits like 20KB, 200KB, 500KB, or 1MB. No upload. No guessing. No account.
No upload. No guessing. Pick the exact cap your portal demands, drop a PDF, photo, signature, or image, and download a file that fits. Hit the exact limit - 200 KB, 50 KB, whatever your form demands. No overshooting, no blurry results. Your files stay on your device. We never see them, upload them, or store them. Close the tab and they are gone. Your first file is free. Today Pass unlocks more files and batch up to 20 at a time for 24 hours, or choose $19 Lifetime when upload limits keep coming back. Choose 200 KB, 50 KB, or any custom limit. Your form knows the number - now your compressor does too. JPG, PNG, WebP, or PDF. Up to 50 MB. Your browser does the work. We do not see it, and…from underbyte.app
Does a similar job
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PDF Compressor – Reduce SizeMar 2026 · play.google.com · ▲2Compress & resize PDF offline — no cloud, no sign-in
1MB CompressMar 2026 · 1mbcompress.com · ▲1100% secure and free online compression, productivity tools
Free PDF Compressor ToolJan 2026 · compresspdfto200kb.online · ▲5Compress PDFs to 200KB for government & job forms (free)
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