Reduce PDF file size by compressing internal stream objects. Processing behavior depends on the tool workflow; see this page and our Privacy Policy.
Reduce file size without quality loss
Please wait, aggressively compressing PDF streams.
Compress PDF reduces the size of a PDF file so it becomes easier to email, upload, store, or share on platforms with size limits. It is useful for scanned documents, reports, presentations, and application files that are too large for portals or inbox attachments.
This tool sends the PDF through a compression workflow and returns a smaller version when possible. It is especially practical when a document is acceptable in content but too heavy for real-world upload limits.
Compression helps documents fit within attachment and submission limits without requiring a full rebuild.
The tool shows original and compressed file sizes so you can quickly judge whether the reduction is worth using.
It helps with routine document workflows where PDFs are functional but just too large for practical sharing.
Compression may reduce image quality or have limited effect on PDFs that are already optimized. If the document contains scanned pages, the best size savings often come with some visual trade-off, so check the final file before using it for official submissions.
For PDF workflows, also use Merge PDF, Split PDF, PDF to Image, or Word to PDF. Read convert Word to PDF with better formatting for document-prep tips.