Help Center
Find answers to common questions and learn how to get the most out of PDFin
Getting Started
How do I use PDFin tools?
Using PDFin is simple! Just select the tool you need from the homepage, upload your PDF file(s), and follow the on-screen instructions. Most tools process files in seconds. No registration or account creation is required.
Do I need to create an account?
No, you don't need to create an account to use PDFin. All tools are available immediately without any registration. Simply visit the tool you need and start processing your PDFs right away.
What file formats does PDFin support?
PDFin supports PDF files for all operations. For conversion tools, we support PDF to Word (DOC/DOCX), Excel (XLS/XLSX), PowerPoint (PPT/PPTX), and JPG. You can also convert Word, Excel, PowerPoint, and JPG files back to PDF format.
Is there a file size limit?
Yes, there is a file size limit to ensure fast processing. The maximum file size is typically 50MB per file. For best results, we recommend keeping files under 20MB for optimal performance.
Security & Privacy
Is my data secure?
Absolutely! PDFin processes all files directly in your web browser using client-side JavaScript. This means your files never leave your device and are never uploaded to our servers. Your documents remain completely private and secure.
Do you store my PDF files?
No, we do not store any of your PDF files. All processing happens locally in your browser, and files are automatically deleted from temporary memory once processing is complete. We have no access to your documents.
Can I trust PDFin with sensitive documents?
Yes, you can trust PDFin with sensitive documents. Since all processing happens in your browser, your files never leave your device. We cannot see, access, or store any of your files or their contents.
What information do you collect?
We collect minimal information for website functionality only, such as anonymized analytics (page views, tool usage). We do not collect any information about your PDF files, their contents, or personal data from your documents.
PDF Tools
How do I merge multiple PDF files?
To merge PDFs, go to the Merge PDF tool, click "Select Files" or drag and drop your PDF files. You can select up to 20 files at once. Arrange them in the order you want, then click "Merge PDFs". The merged file will download automatically.
Can I split a PDF into separate files?
Yes! Use the Split PDF tool to separate pages. You can split by page ranges (e.g., pages 1-5, 6-10) or extract specific pages. Each range or page selection will create a separate PDF file.
How does PDF compression work?
Our compression tool reduces file size by optimizing images, removing unnecessary metadata, and compressing content while maintaining quality. The compression ratio depends on your PDF's content, but we aim to reduce size by 30-70% while keeping quality high.
What formats can I convert PDFs to?
You can convert PDFs to Word (DOC/DOCX), Excel (XLS/XLSX), PowerPoint (PPT/PPTX), and JPG images. You can also convert Word, Excel, PowerPoint, and JPG files to PDF format.
How do I protect a PDF with a password?
Use the Protect PDF tool to add password encryption. Upload your PDF, enter a strong password, and click "Protect PDF". The password-protected file will download. Remember to save your password securely!
Can I remove password protection from a PDF?
Yes, if you know the password, you can use the Unlock PDF tool. Upload the protected PDF, enter the password, and the unlocked version will be available for download.
How do I add a watermark to my PDF?
Use the Watermark tool to add text or image watermarks. Upload your PDF, choose text or image watermark, customize the position, transparency, and style, then apply it. The watermarked PDF will download automatically.
Can I rotate pages in a PDF?
Yes! The Rotate PDF tool lets you rotate individual pages or all pages at once. Select the pages you want to rotate and choose the rotation angle (90°, 180°, or 270°).
How do I organize PDF pages?
The Organize PDF tool lets you reorder, delete, or rearrange pages. Upload your PDF, view all pages, drag to reorder, delete unwanted pages, and create your custom PDF layout.
What if my PDF is corrupted?
Try our Repair PDF tool! It can fix many common PDF corruption issues by rebuilding the file structure. Upload the corrupted PDF and the tool will attempt to repair it.
Troubleshooting
Why is my file processing slowly?
Processing speed depends on file size and complexity. Large files (over 20MB) or PDFs with many images may take longer. For best performance, try compressing large files first or splitting them into smaller parts.
The tool says my file is too large. What can I do?
If your file exceeds the size limit, try splitting it into smaller parts first, or use a PDF compression tool to reduce the file size before processing.
My converted file looks different. Why?
PDF conversion accuracy depends on the original file's complexity. Simple text PDFs convert best, while PDFs with complex layouts, images, or special formatting may require manual adjustments after conversion.
The tool isn't working. What should I do?
Try refreshing the page, clearing your browser cache, or using a different browser. Make sure you're using a modern browser (Chrome, Firefox, Safari, or Edge). If problems persist, contact us through our Contact page.
Can I use PDFin on mobile devices?
Yes! PDFin is fully responsive and works on mobile devices. However, processing large files on mobile may be slower due to device limitations. For best results, use a desktop or laptop computer.
Do I need to install any software?
No installation required! PDFin works entirely in your web browser. Just visit the website and start using the tools immediately. No downloads or installations needed.
Pricing & Usage
Is PDFin really free?
Yes, PDFin is completely free to use with no hidden fees, subscriptions, or credit card requirements. All tools and features are available at no cost, forever.
Are there any usage limits?
There are reasonable rate limits to prevent abuse (100 requests per 15 minutes, 20 uploads per hour per IP), but these are generous enough for normal use. Most users never encounter these limits.
Will PDFin always be free?
Yes, we are committed to keeping PDFin free forever. We believe everyone should have access to powerful PDF tools without barriers.
Do you show ads?
We may display advertisements to support the free service, but ads never interfere with the functionality of our tools. Your PDF processing experience remains fast and seamless.
Still Need Help?
Can't find the answer you're looking for? Our support team is here to help.
Contact Support