16 premium PDF tools in one place — merge, split, compress, convert, OCR, protect and more. Server-powered, no software install, 100% free.
Combine multiple PDF files into one document
Extract specific pages from your PDF
Reduce file size while maintaining quality
Rotate all pages in your document
Stamp custom text on every page
Add numbered footers or headers to every page
Encrypt your PDF with AES-128 password
Fix corrupted or damaged PDF files
Convert PDF pages to PNG or JPEG images
Convert JPG, PNG, WebP images to a single PDF
Extract all text content from a PDF
Change PDF title, author, subject and keywords
Fill fillable form fields programmatically via JSON
Extract tables from PDF to Excel spreadsheet
Extract text from scanned or image-based PDFs
Advanced compression with image optimization
Zlvox PDF Suite is a complete 16-in-1 toolkit: Merge, Split, Compress, Rotate, Watermark, Page Numbers, Password Protect, Repair, PDF→Images, Images→PDF, Extract Text, Metadata Editor, Form Fill, PDF→Excel, OCR, and Optimize. All tools are 100% free with no registration.
Click the Merge tab, then drag and drop or select up to 30 PDF files. They will be listed in order — you can remove any you don’t need. Click “Merge Files” and the server combines them into a single PDF you can download instantly.
Yes. Upload your PDF in the Split tool, specify the start and end page numbers, and click “Split PDF”. The extracted page range will be saved as a new PDF document ready to download.
Our compression algorithm removes redundant data and optimizes images without noticeable quality loss. You get a smaller file size while keeping content readable and sharp. For more aggressive reduction use the Optimize tool.
Use the Watermark tab to stamp custom text (e.g. “CONFIDENTIAL”) on every page with adjustable opacity and font size. For page numbers, choose the Numbers tab and set position, format, font size, and starting number.
Absolutely. Files are processed on our secure servers and are never stored permanently. They are automatically deleted after processing. All transfers are encrypted via HTTPS.
Use the To Images tab. Upload your PDF, choose JPEG or PNG output format, select the DPI (72 for web, 300 for print), and choose how many pages to convert. The server extracts each page as a separate image and packages them in a ZIP file.
You can upload JPG, PNG, GIF, WebP, and BMP files. The tool combines them into a single PDF in the order you add them. Perfect for creating PDFs from scans or photos.
The OCR tool extracts text from scanned PDFs or image-based PDFs using Tesseract OCR. Select the document language (English, Spanish, French, German, Chinese, Arabic) and click “Extract Text (OCR)”. The server returns searchable, copyable text.
Yes. Use the Protect tab to set a user password (required to open) and optionally an owner password for permissions. You can also allow or disallow printing. The PDF is encrypted with AES-128.
The Form Fill tab lets you provide JSON data with field names and values. Upload a fillable PDF, enter your data in JSON format, and the server populates the fields and returns a completed PDF ready to download.
All 16 tools are completely free with no hidden costs. There is a 20MB per-file limit for most tools to ensure optimal performance. For larger files, try the Optimize tool first to reduce size, then re-process.