PDFtoolkit
VCL
https://www.gnostice.com
Highlights
Edit & enhance PDF files
Merge, split & reorganize PDF files
Read, fill & flatten form fields (PDF forms or AcroForms)
Add digital signatures
Change page layout and document display settings
Write modified PDF content to file, memory & HTTP response
Write autotext such as page numbers
Extract plain & formatted text
Convert pages to JPEG and BMP
View and print PDF documents
Interactive PDF viewer
Fill forms interactively
Click and save page content as images
Encrypt & decrypt PDF documents
Specify document restrictions
Add, edit & delete bookmarks
Add annotations
Add & extract file attachments
Add markups, watermarks & stamps