Compress PDF
Reduce file size with browser-side optimization.
Upload one PDF file
Drag and drop files here, or browse from your device.
Compression options
How to use this tool
- Upload your PDF
Click the upload area or drag and drop a PDF file. The file stays on your device.
- Choose compression level
Select a compression preset — light for quality preservation, or higher for maximum size reduction.
- Compress
Click the compress button and the tool reduces file size using browser-based optimization.
- Download the result
Download the compressed PDF and compare the size reduction with the original.
What problem does this solve?
PDF too large to email or upload? Many platforms and email services have file size limits (Gmail caps at 25MB). This tool compresses your PDF to a smaller size while keeping it readable, all without uploading your file anywhere.
Who needs this?
- Anyone trying to email a PDF that exceeds the attachment size limit
- Job applicants compressing resumes for online application portals
- Students reducing assignment PDFs to meet upload requirements
- Professionals sharing documents through messaging apps with file size caps
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Popular Guides
- Compress PDF to 5MBReduce PDF file size to under 5MB for uploads and sharing. Browser-based compression — no upload to any server. Fast and free.
- Compress PDF for Email AttachmentReduce PDF size to fit email attachment limits. Works with Gmail (25MB), Outlook (20MB), and other providers. No upload needed.
- Compress PDF on iPhoneReduce PDF file size directly on your iPhone using Safari. No app download needed — compression runs in your browser instantly.
- Compress PDF Without Losing QualityReduce PDF file size while preserving visible quality. Light compression removes unused data without affecting how your document looks.
- Reduce PDF Size for Job ApplicationCompress your resume, cover letter, or portfolio PDF to meet job application upload limits. No file upload needed — runs in your browser.
- Compress Scanned PDFReduce the size of scanned PDF documents. Scanned pages are image-heavy and compress well. No upload needed — runs in your browser.
FAQ
Will compression reduce quality?
Compression behavior depends on your selected preset. Higher compression may reduce visual quality.
What if the output file is not much smaller?
Some PDFs are already optimized. The tool still gives you an output and lets you decide which version to keep.
How do I compress a PDF for email attachment?
Upload your PDF, choose a compression preset, and download the reduced file. Most email providers allow attachments up to 25MB.
What is the maximum PDF size for Gmail?
Gmail allows attachments up to 25MB. If your PDF is larger, use this compressor to reduce it below that limit.
Can I compress a PDF without losing quality?
Yes. Use the light compression preset which removes unused data and optimizes structure without affecting visible content.
Is it safe to compress PDFs online?
Yes. Your files are compressed entirely in your browser and never uploaded to any server. Your documents remain private.