Conholdate

Conholdate.Total combines all file format APIs offered by Aspose & GroupDocs in a single suite. It can be used to develop .NET and Java applications having the ability to view, convert, annotate, compare, sign, assemble, edit, search and parse most commonly used document formats such as Microsoft Word, Excel, PowerPoint, Outlook, Project, Visio, Adobe Acrobat, Illustrator, Photoshop, AutoCAD, OpenOffice and many more. 

It has included support for a wide-range of documents processing features, such as

• Create and Manage Microsoft Word, Excel, PowerPoint, PDF, Visio, Outlook emails, MS Project, OneNote, AutoCAD drawings, Images, HTML files and many more.
• Loading & Saving Assembled POT & OTP Presentation Document Formats
• Export Word Documents into HTML Pages, Images or PDF, with Track Changes
• Extract Text from PNG
• Text conversion to HTML, PDF and image format
• Text extraction from Shapes, Excel Worksheets, Presentation Templates, WordArt Objects, Zip Archives,  & Text Boxes
• Password protected documents creation, modification and applying eSignature to Password Protected Files.
• SMTP, POP3, IMAP, MIME,  DNS, FTP, ICMP, and WHOIS support
• CAD Drawings conversion to SVG and Text to HTML file formats
• Word, Excel and Email Documents encoding support
• Rendering Documents located at FTP or Cloud Storage Locations
• Text Metadata extraction from PNG Image format

Learn More: https://products.conholdate.com/total/