PDF Tools

PDF Compressor

Try lightweight PDF optimization without uploading your file.

Processed locally in your browser. Files and inputs are not uploaded by this tool.

PDF · Up to 25 MB per file. Unencrypted PDFs only.

Object-stream optimization only: images are not downsampled. Some PDFs will not get smaller. The original is retained if optimization does not reduce its size. Keep signed originals.

How to use PDF Compressor

Select an unencrypted PDF and run optimization. Object streams can reduce document overhead, but images are not downsampled and strong compression is not guaranteed. If the output is larger, the original file is retained. Digital signatures may be invalidated by changes; keep the original.

Privacy and practical limits

Processing takes place on your device. Keep original files and review the result before sharing it. Large files may take longer on mobile devices. No signup or paid API is required.