100% client-side

Convert PNG to PDF Under 25KB

Hit exactly 25KB in one pass — with the highest possible quality. No upload, no signup, no watermark.

Drop any image or document here or browse files

Supports JPG, PNG, HEIC, WEBP, PDF, SVG, TIFF, AVIF, GIF, BMP · Preset for PNG → PDF

No files selected yet. Drag & drop photos, documents or click browse above.

Conversion Settings

Output format

Input: png Auto-detects dropped files

Merge Files into Single PDF

Combines all images into one multi-page PDF document. Drag cards to reorder page sequence.

Compression & Size Max 25 KB

Advanced Options

Preserve EXIF metadata (Camera, GPS, date) Fill transparent backgrounds with white (for JPG) Auto-orient photos (EXIF correction)

100% private

Your files are processed entirely in your browser using Web Workers and the Canvas API. Nothing is uploaded, stored, or logged. The tab can even work offline after first load.

How PNG to PDF under 25KB works

Need to convert PNG files to PDF? PixelKit does it in one click, right in your browser. It runs a fast binary-search compression loop to land your file under 25KB without visible quality loss — the same technique professional photo tools use, but without asking you to sign up or upload anything. Because nothing is sent to a server, there is no upload wait, no file-size limit from a backend, and no privacy risk. Your photos, ID scans and documents stay on your device the entire time.

The tool works offline after the first page load, on mobile and desktop, and produces standard PDF files accepted by portals, email clients and design apps. Just set the target to 25KB, drop your PNG file, and download the result. If the first pass lands slightly above 25KB, PixelKit automatically tries again with a tighter quality curve — so you always get the smallest file that still meets the limit.

No account, no watermark, no email gate. Just the file you need, at the size you need it.

Frequently asked questions

How do I compress PNG to under 25KB?

Drop your PNG file into the tool above, choose PDF as the output, and set the target to 25KB. PixelKit automatically adjusts quality to land at or below the target — no manual slider work required.

Is this PNG to PDF converter really free?

Yes. PixelKit is free to use with no watermarks, no file limits, and no account. The tool runs entirely in your browser, so there is no server cost that would justify a paywall.

Are my PNG files uploaded anywhere?

No. The conversion happens locally using your browser's canvas and Web Worker APIs. Files never leave your device, and nothing is stored after you close the tab.

What is the maximum PNG file size?

There is no server-side limit because there is no server. Very large files may be limited only by your device's available memory — usually several hundred MB on desktop and tens of MB on mobile.

Common use cases

Aadhaar & PAN updates

UIDAI portals cap Aadhaar scans at 2 MB and PAN uploads at 100–200 KB. Convert and compress without losing readable text on the scan.

Exam & job applications

SSC, UPSC, IBPS, NEET and most state portals reject photos and signatures above 20–50 KB. Hit the exact number every time.