Reduce your PDF file sizes without losing quality. Select multiple at once. Free, unlimited, no signup.
Drag your PDFs or click to select
Maximum 50 MB
💡 For most cases, medium quality already reduces size significantly. Use low quality only if you need very small files.
Upload your PDFs
Drag and drop or click to upload one or multiple PDF files at once, up to 20 files per batch.
Choose quality
Medium for general use, low for email attachments with size limits, high for documents meant for printing.
Download the result
Get your compressed files in seconds, with no watermarks and all original formatting preserved.
Compressing a PDF means reducing the file size without changing the content. The process works by recompressing internal images, removing redundant data, and optimizing the document structure. The result is a smaller file that opens normally in any PDF reader.
The final size depends heavily on the content. PDFs with many high-resolution images, such as catalogs, presentations, or scanned documents, typically shrink by 60 to 80%. Text-heavy PDFs compress less, but still save some kilobytes. Medium quality is the ideal balance for most use cases: noticeably smaller file size with no perceptible visual degradation.
In practice, this solves common problems: Gmail rejects attachments over 25 MB, many job-application and government portals cap uploads at 5 or 10 MB, and WhatsApp Web chokes on very large PDFs. Compressing before sending avoids starting the whole process over because of a size limit. If your goal is the opposite, archiving a document so it never loses quality or becomes obsolete, the PDF to PDF/A tool is a better fit than compression.
It depends on the level chosen. At high quality, the difference is imperceptible. At medium, images are slightly compressed but the document remains perfectly readable. At low, the reduction is greater but slight pixelation may appear in images. Text is never affected by compression.
We accept files up to 50 MB each. You can compress up to 20 PDFs at once in a single batch.
It varies by content. Image-heavy PDFs typically shrink 50 to 80%. Text-only PDFs compress less. The final size is shown in the downloaded file.
Yes. Files are transmitted over an encrypted HTTPS connection, processed in server memory, and discarded immediately after download. No document is ever saved to disk.
No. Compression is a one-way process, keep the original file if you think you might need the uncompressed version later.
