Compare original and output sizes before downloading. If the file grows, we tell you to keep the original.
Private, browser-based compression
Make large PDFs
easier to share.
Reduce image-heavy and scanned PDF files with clear quality controls and an honest before-and-after comparison.
Need to remove pages first? Open PDF Organizer →PDF COMPRESSOR
Compress PDF
Files never leave this browser
3×Clear presetsLight, balanced, or strong100%Size comparisonSee the result before downloadLOCALNo uploadProcessing stays on your device
FIRST PAGE PREVIEW
DOCUMENT CHECK
What compression will change
Inspecting searchable text and interactive content…
TEXTCheckingSearchable text layerLINKCheckingClickable linksFORMCheckingForm fieldsSIGNCheckingDigital signatures
This compressor creates a new image-only PDF.
Searchable text, links, form fields, layers, and certificate-based digital signatures will not remain interactive. Visual appearance is preserved as page images.
Opening PDF…
Inspecting pages and document features
Light preserves more detail, Balanced fits everyday sharing, and Strong prioritizes a smaller file.
Image-only output is explained before processing, including the effect on text, links, forms, and signatures.
Compress image-heavy PDFs without uploading them
Choose Light, Balanced, Strong, or custom resolution and JPEG quality. OmniKit renders one page at a time, preserves each page’s visible size and orientation, then shows the exact file-size change.
This method works best for scanned documents and PDFs containing large photos. The output is image-only, so searchable text, links, form fields, layers, and certificate-based digital signatures are flattened.