PNG uses lossless compression, preserving every detail and supporting transparency. JPG uses lossy compression, creating smaller files but with some quality loss. Use PNG for graphics with text, logos, screenshots, or when you need transparency. Use JPG for photographs where smaller file size is more important than perfect quality.

Yes, PNG fully supports transparency (alpha channel). If your PDF has transparent elements or backgrounds, they will be preserved in the PNG output. This makes PNG ideal for logos, graphics, and design elements that need to be placed over different backgrounds. JPG does not support transparency.

72 DPI is suitable for web use and screen viewing - great for emails and websites. 150 DPI is recommended for most general purposes, providing good quality with reasonable file size - ideal for presentations and document archiving. 300 DPI produces high-resolution images suitable for professional printing or when you need maximum detail.

Yes, all pages in your PDF will be converted to individual PNG images. Each page becomes one PNG file, numbered sequentially (page_1.png, page_2.png, etc.). For multi-page PDFs, you'll receive a ZIP file containing all the converted images for convenient download.

PNG uses lossless compression, which preserves every pixel exactly as it is, resulting in larger files. JPG uses lossy compression that discards some data to achieve smaller sizes. The tradeoff is that PNG maintains perfect quality with no compression artifacts, while JPG may show some quality loss, especially with text and sharp edges.

We support PDF files up to 100MB in size and PDFs with up to 20 pages for free users. This handles most common documents. Pro users have access to larger file sizes and unlimited page counts for batch processing of longer documents.

Password-protected PDFs need to be unlocked before conversion. You'll need to remove the password protection using the original password first (in Adobe Acrobat or another PDF editor), then upload the unlocked PDF. We cannot bypass password protection for security and legal reasons.

Yes, we take security seriously. All uploaded PDFs are processed securely on our servers and automatically deleted within 24 hours after conversion. We use HTTPS/SSL encryption for all file transfers, and our automated systems process files without any human access. We never store, share, or analyze your content.

Grayscale mode converts your PDF to black and white PNG images, removing all color information. This is useful for documents that don't need color, printing in black and white to save ink, reducing file size while maintaining readability, or creating a consistent look for document archiving.

No, our converter works entirely in your web browser. Simply upload your PDF and download the converted PNG images. No software installation, plugins, or account registration required. It works on any device with a modern web browser - Windows, Mac, Linux, Chrome OS, and mobile devices.