Free online PDF compressor — reduce file size without uploading
Majhi Naukri PDF Compressor is built for real-world uploads: government job forms, college applications, and portals that reject files above 1–2 MB. Our smart engine inspects each document, detects whether it is image-heavy, text-only, or mixed, and picks structural optimization or image recompression automatically. Everything runs in your browser using PDF.js and pdf-lib, so your documents stay on your phone or laptop.
Choose Recommended for balanced size and readability, Maximum Compression when you need the smallest file for email, or High Quality when clarity matters more than bytes. Power users can open Custom to tune DPI, JPEG quality, grayscale, metadata removal, and more. Batch mode lets you queue several PDFs, reorder them, and download a ZIP when finished.
Frequently asked questions
Will compression make my PDF blurry?
Scanned PDFs are re-rendered at the DPI you choose. High Quality mode keeps more detail; Maximum mode prioritizes smaller files. Text-only PDFs use structural optimization and usually stay sharp.
Does it work on Android phones?
Yes. We process one page at a time and yield to the browser to avoid freezing low-end devices. Very large files (50+ MB) may take longer—use Wi-Fi and close other tabs.
Is password-protected PDF supported?
Encrypted PDFs must be unlocked first. This tool does not bypass passwords—it is for files you own or are allowed to edit.
What is the quality score?
A heuristic from 35–98 based on savings, document profile, and page count. It helps compare runs; it is not a formal ISO metric.
Can I compress without re-uploading to a cloud?
Yes. No server upload queue—compression is client-side only, as stated in our privacy banner on this page.