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Your PDF workspace — pick a tool or drag a file to get started.
AI Smart Split AI
Chat with Claude — drop a PDF and describe how you want it split
Split PDF
Extract pages, split by range or every N pages
Merge PDFs
Combine multiple PDFs into one document
Compress
Reduce file size without losing quality
Watermark
Stamp CONFIDENTIAL or custom text on pages
Protect
Password-encrypt PDF files
Extract Text
Pull all text from a PDF for copy or export
OCR Scan
Extract text from scanned image PDFs
Rotate Pages
Rotate specific pages or whole document
Edit PDF
Delete, reorder pages and add text overlays
Convert PDF
PDF to images or images to PDF
Header & Footer
Stamp custom text on every page header and footer
Flatten PDF
Flatten form fields and annotations to static content
No files processed yet — download a result to see it here.
Split PDF
Extract pages or split into multiple files by range or every N pages.
Merge PDFs
Combine multiple PDFs into a single document.
Compress PDF
Reduce file size by compressing content streams. Best results on PDFs with images.
Watermark PDF
Stamp diagonal text across every page of your document.
Protect PDF
Password-protect your PDF — encrypted entirely in your browser.
Extract Text
Pull all readable text from a PDF — copy it or download as .txt.
OCR Scan
Extract text from scanned PDFs or image-based documents — processed entirely in your browser.
Rotate Pages
Rotate specific pages or the entire document.
API Keys
Generate secret keys to authenticate requests to the NyxPrism REST API from your own applications.
AI Smart Split
Drop a PDF and chat with Claude — describe how you want it split and it will plan and execute it for you. Text is extracted in your browser; your PDF is never uploaded.
Edit PDF
Delete pages, reorder pages, and add text overlays — all in your browser.
Convert PDF
Convert PDF pages to images, or assemble images into a PDF.
Sign PDF
Draw, type, or upload a signature and embed it into your PDF.
Annotate PDF
Highlight, draw, and add notes directly on your PDF pages.
Page Manager
Reorder, delete, and reorganize pages with a visual drag-and-drop interface.
Add Page Numbers
Stamp page numbers onto every page of your PDF with custom formatting.
Redact PDF
Permanently black out sensitive text and images from your PDF.
Batch Compress
Compress multiple PDFs at once and download as a ZIP archive.
{name} original • {date} YYYY-MM-DD • {i} indexPDF Diff Viewer
Compare two PDF versions side by side — pixel differences highlighted in red. Processed entirely in your browser.
Original PDF
Revised PDF
PDF Metadata
View and edit title, author, subject, keywords and more.
Flatten PDF
Flatten interactive form fields and annotations to static, uneditable content.
Account Settings
Your profile and subscription details.