Yes, 100% free! Unlike many other services, we don't offer premium accounts or paid features. Every tool on MainPDF.com is completely free to use with no hidden costs.

Our service is supported by non-intrusive ads and powered by Google's Blogger platform.

No registration required! We don't even have an account system. All tools work immediately without signups, passwords, or personal information.

Just open any tool, upload your file, and download the result - it's that simple!

We only have two simple limits to ensure fair usage for everyone:

• File size: Maximum 50MB per file
• Processing: One file at a time

There are no daily or monthly limits - use our tools as much as you need!

We provide these completely free PDF tools:

• Converters: PDF to Word, Excel, PowerPoint, JPG
• Creators: Word to PDF, Excel to PDF, JPG to PDF
• Editors: Merge PDFs, Split PDF, Compress PDF
• Utilities: Rotate PDF, Organize PDF pages
• Image Tools: Convert JPG/PNG/WebP formats
• OCR: Extract text from scanned PDFs/images
• Security: Remove PDF passwords (if known)

We support all common document and image formats:

• Documents: PDF, DOCX, XLSX, PPTX, TXT
• Images: JPG, PNG, GIF, BMP, TIFF, WebP
• Other: HTML (web pages to PDF)

Never! We don't add watermarks, logos, or any other modifications to your files. What you upload is exactly what you'll get back - just with your requested changes applied.

Your privacy is important to us:

• Automatic deletion: All uploaded files are permanently deleted from our servers within 1 hour
• No storage: We don't keep copies of your documents
• Secure transfer: All file transfers use HTTPS encryption
• No tracking: We don't link files to individual users

No human ever sees your files unless you contact support with a specific issue. All processing is automated.

For sensitive documents, we recommend:

1. Processing files while offline if possible
2. Using our tools on a private/incognito browser window
3. Deleting the processed file from your device when done

We use only essential cookies for:

• Remembering your preferred language
• Basic analytics (anonymous visitor counts)

We don't use tracking cookies, ads networks, or any invasive tracking technologies.

Main PDF works on all modern browsers:

• Chrome (recommended)
• Firefox
• Edge
• Safari
• Opera

For best results, use the latest browser version. Some tools may not work on very old browsers (like Internet Explorer).

Common reasons for failures:

• File too large: Over 50MB (try compressing first)
• Unsupported format: Check our formats list
• Corrupt file: Try opening it locally first
• Password protected: We can't process locked PDFs

If problems persist, try a different browser or smaller file.

Processing time depends on:

• File size: Smaller files are faster
• Content complexity: Images/text-heavy files take longer

Typical times:

• 1-10 page document: 5-20 seconds
• 10-50 page document: 20-60 seconds

Our PDF merger is simple to use:

1. Go to the "Merge PDF" tool
2. Upload 2 or more PDF files
3. Drag to reorder pages if needed
4. Click "Merge PDF"
5. Download your combined file

Note: You can merge up to 20 files at once (within the 50MB total limit).

To reduce PDF file size:

1. Use our "Compress PDF" tool
2. Choose compression level:
   • Low: Minimal quality loss
   • Medium: Balanced quality/size
   • High: Maximum compression
3. Download the smaller file

Tip: For images-heavy PDFs, try the "High" setting first.

While PDFs aren't meant for direct editing, you can:

1. Convert to Word (for text editing)
2. Edit in Word
3. Convert back to PDF

For simple changes:

• Use our "PDF Editor" to add text/images
• Use "Organize PDF" to rearrange pages