Optimize PDF
Optimize PDF Online - Free PDF Cleaner & Optimizer | CarePDF
Clean and optimize PDF files for privacy and performance. Remove hidden data, metadata, JavaScript, and attachments. Free online PDF optimizer.
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How It Works
1. Upload
Select or drag your files into the upload area.
2. Configure
Adjust settings if needed.
3. Download
Get your processed file instantly.
Features
Remove Hidden Data
Clean metadata, JavaScript, attachments, hidden layers, and revision history from your PDFs.
Privacy Protection
Remove author names, creation dates, editing software info, and document history.
Security Sanitization
Remove potentially malicious JavaScript and active content for safe sharing.
Flatten Content
Merge annotations, comments, and form fields into static page content.
Web Optimization
Linearize PDFs for faster web loading and streaming.
Structure Cleanup
Remove unused objects and optimize internal structure for better performance.
Frequently Asked Questions
What does PDF optimization do?
Optimization cleans unused data, removes hidden content like metadata and JavaScript, and restructures the PDF for better performance, smaller size, and enhanced privacy.
Will optimization change how my PDF looks?
The visual appearance stays exactly the same. Only hidden or background data is modified. If you choose to flatten annotations or forms, those elements become part of the page content.
What is PDF metadata and why remove it?
Metadata includes author name, creation/modification dates, editing software, and revision history. Removing it protects privacy and reduces file size.
Why should I remove JavaScript from PDFs?
JavaScript in PDFs can pose security risks. Many organizations require JS-free PDFs. Removing it ensures safe sharing and compliance with security policies.
Is optimization the same as compression?
No. Compression focuses on reducing file size by recompressing content. Optimization cleans the PDF structure, removes hidden data, and improves compatibility. Both can reduce size, but for different reasons.
What does "flatten annotations" mean?
Flattening merges comments, highlights, and markup annotations into the page content. They become part of the PDF image and can no longer be edited or deleted.
Is this service free?
Yes, our PDF optimizer is completely free with no hidden costs or registration required.
Are my files secure?
Absolutely. We use 256-bit SSL encryption for all transfers. Files are automatically deleted within 1 hour after processing.