InstaGST Tools
A premium, secure, and lightning-fast suite of tools to merge, split, compress, and digitally sign your documents.
All in one Tool
A complete unified workflow: Combine PDFs, auto-generate outline bookmarks, add page numbers, apply custom stamps, and optionally split the resulting document.
Bookmark Editor
View, edit, reorganize, and add nested bookmarks to your PDF documents.
Merge PDF
Merge multiple PDFs into a single, professionally formatted document with automatic page orientation correction and A4 page standardization.
Split PDF
Separate pages into independent files instantly.
Compress PDF
Reduce file sizes while maintaining quality.
Image to PDF
Convert JPG, PNG, or WEBP images into a single PDF.
Re-organise PDF
Reorder, rotate, or delete pages from your PDF with an intuitive interface.
Paginate PDF
Add custom page numbers with advanced typography.
PDF Stamp
Add watermarks and custom stamp overlays.
Insert Blank Page
Easily insert blank pages anywhere within your PDF document