PDF Compressor & Merger

Reduce PDF file size online without losing quality. RiazHub’s free client-side PDF compressor features batch multi-file compression, B&W mode, and PDF merging with zero server uploads.

Multi-File & Client-Side Privacy

PDF Compressor & Merger

Compress single or batch PDF files locally in your browser. Optionally merge all files into a single PDF or download as ZIP.

Drop your PDF file(s) here or click to browse

Select one or multiple PDF documents from your device for batch compression

Supports Batch PDFs • Multi-Page • 100% Secure

Selected PDF Files (0)

Select Compression Level

Extreme Max Savings

Maximum size reduction with downsampled image quality. Ideal for large scanned PDFs.

Recommended Best Balance

Optimal balance between sharp image clarity and high compression ratio. Recommended.

Low High Quality

Mild compression preserving high resolution details. Ideal for official prints & certificates.

Convert Embedded Images to Grayscale (B&W)

Dramatically shrinks PDF size (extra 50-80% savings) by removing color data.

Preparing batch processing...

Batch PDF Compression Complete!

All files have been successfully compressed client-side.

Files Processed

Total Pages

Original Size

0 MB

Compressed Size

0 MB

Total Saved

Download Compressed Files