Compress PDF Online — Reduce File Size
Reduce the size of a PDF file. Server-side via Ghostscript.
PDF compression shrinks a file's size so it's easier to email, upload to a website, or submit to a document system with attachment size limits. Heavy PDFs are usually bloated by high-resolution images and scans — and that's exactly what compression optimizes, without splitting the document into parts.
To compress a PDF, upload your file above, pick a compression level, and download the smaller version. Processing runs on our server through Ghostscript — an industry-standard PDF tool — so the document's structure, text, and page order stay intact.
Three levels are available. "Strong" (72 dpi) gives the smallest file size and suits on-screen viewing and quick sharing. "Medium" (150 dpi) balances size and quality, and works well for most everyday needs. "Light" (300 dpi) preserves image quality as much as possible and is best for print. The higher the compression, the more visible the loss of sharpness in embedded images, while text stays crisp at every level. If a document has few or no images, the size reduction will be modest — there's simply not much to compress. The source file is removed from our server right after processing. Maximum file size is 25 MB. Need to edit the content instead? Try PDF to Word.