Compress PDF Online Free
PDF files can grow large quickly, especially with embedded images and fonts. Switch & Shrink compresses your PDFs to make them easier to email, upload, and store — without losing text clarity or document structure. Upload up to 20 PDFs at once and download instantly. Free, no sign-up, no watermarks.
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How to Compress PDF
- 1Upload your PDF files by dragging them onto the page or browsing your files.
- 2Adjust the compression slider to balance file size and quality.
- 3Click Convert to compress your PDFs.
- 4Download your smaller PDF files individually or as a ZIP.
Large PDF files are a common frustration. Email providers reject attachments over 10–25 MB, upload forms have size limits, and unoptimized PDFs eat up cloud storage. Our PDF compressor reduces file size while keeping documents readable and professional. Switch & Shrink uses Ghostscript-based compression to optimize embedded images, remove duplicate resources, and streamline PDF internal structure. Text remains crisp and searchable, hyperlinks keep working, and the layout stays intact. For documents with lots of high-resolution images, you can see size reductions of 50–80%. Text-heavy documents with few images typically compress by 10–30%. You can also convert PDFs to image formats like JPG or WebP, which is useful for single-page documents or embedding PDF pages in websites and presentations.
Frequently Asked Questions
Will compressing a PDF make the text blurry?
No. Our PDF compressor primarily optimizes embedded images and internal resources. Text remains sharp and searchable. Only at very aggressive compression levels might embedded images show slight quality reduction.
Can I compress password-protected PDFs?
Switch & Shrink works best with unprotected PDF files. If your PDF has a password, remove the protection first before compressing.
How much can I reduce a PDF file size?
Documents with many high-resolution images can often be compressed by 50–80%. Text-heavy PDFs with few images typically see 10–30% reduction.
Will links and bookmarks be preserved?
Yes, our compression preserves hyperlinks, bookmarks, and document structure. Your compressed PDF will function just like the original, only smaller.