PDF Compressor
Reduce your PDF file size. No server upload, no usage limit — processes directly in your browser.
Drag a PDF file here or click to upload
PDF files supported · Max 50MB
Text, fonts & vectors always preserved | Metadata & unused objects auto-removed
Frequently Asked Questions
How does PDF compression work?
Only embedded JPEG images inside the PDF are selectively recompressed. Text, fonts, and vector graphics are preserved as-is, so text remains searchable and readable. PDFs with many images see the best compression results.
Is there quality loss when compressing?
JPEG recompression is applied only to images, so there may be slight quality loss. At quality 80 or above, the difference is virtually unnoticeable. Text and vector graphics retain original quality with zero loss.
What PDF files can be compressed?
Most PDF files can be compressed. PDFs with many JPEG images benefit the most. Text-only PDFs are already small, so additional compression is limited.
Can PDFs contain hidden malicious scripts?
Yes. PDFs can contain JavaScript, auto-actions, and embedded files that execute automatically when opened. IMGLOO's 'Remove Scripts' option strips these threats during compression — all without uploading your file.