About PixelSize

Exact KB. Every form. Every time.

PixelSize is a free, browser-based compression tool built for one job: getting your photos and PDFs to the exact file size Indian government forms demand - without ever uploading them to a server.

Why PixelSize exists

Every day, thousands of Aadhaar, PAN, passport and exam applications get rejected for reasons that have nothing to do with the applicant: "file size must be under 200 KB", "photo exceeds 50 KB", "signature blurred after compression". Meanwhile, most online compressors ask you to upload your identity photo to an unknown server, then miss the size target anyway - or stamp a watermark across your face.

We built the opposite: a tool that runs entirely inside your browser, hits the exact kilobyte you type, and leaves your document clean.

How we keep it private

• No uploads, ever. Your file is processed by your own device. No server ever sees your photo, signature or PDF.
• No accounts, no tracking, no watermarks. Nothing to sign up for, nothing stamped on your output.
• One local convenience. If you use the tool, your last KB target is remembered in your own browser (localStorage) so you don't retype it. It never leaves your device and you can clear it with your browser data at any time.

What makes the output pass portal checks

• Exact-KB compression: a binary-search encoder lands precisely on your target size instead of approximating it.
• DPI metadata writer: 200 or 300 DPI is written into the JPEG header - the check most free compressors skip and portals enforce.
• True-size preview: compare the original and compressed file side by side, at real relative size, before you download.
• Broad format support: JPG, PNG, WEBP, HEIC, AVIF, BMP, GIF and PDF (first page).

What PixelSize is not

PixelSize is an independent private project. It is not affiliated with, endorsed by, or connected to UIDAI, Protean (NSDL), UTIITSL, the Income Tax Department, or any government body. The specifications shown on our guides are commonly published values; always confirm the exact limits displayed on your official form before submitting.

Where to start

• Open the exact-KB tool - compress any photo or PDF in seconds.
• Size guide hub - every Indian government photo spec in one table.
• Aadhaar photo resizer - 3.5 × 4.5 cm, 200 DPI, under 200 KB.
• PAN card photo resizer - 3.5 × 2.5 cm, 200 DPI, under 50 KB.

Contact

Questions, bug reports or specification corrections: support@pixelsize.in or the contact page.