ZimaPDF is a free, all-in-one online PDF editor that lets you: ✓ Merge multiple PDFs into one ✓ Split PDFs into separate pages ✓ Compress PDFs to reduce file size ✓ Crop, rotate, and reorganize pages ✓ Convert images to PDF ✓ Add watermarks and page numbers ✓ Extract text from PDFs ✓ Protect PDFs with passwords ✓ Convert PDFs back to images No installation needed. No sign-up required. Everything runs in your browser. 100% secure and private.