PDF Viewer SDK ActiveX x64 7.0

Version 7.0 has been released (2 September 2025 released)

• added SavePDF method. It can save to PDF file and keep original quality.
• added SavePDFWithPassword method. It can save to PDF file with password and select Encryption method.
• added SavePDFWithDeletePage method. It can save to PDF wilt and Delete specific page range.
• fixed cannot open some PDF files.
• Updated VB6, VC , VFP, VB.NET 2010, VB.NET 2019, C# 2010, C#2019 samples.

Version 6.5 has been released (16 January 2025 released)

• fixed locked text file, xml, html file issue when called ExportText method.
• fixed PrinterGetPageCount method crash issue.
• fixed cannot set iScale parameter to 1.0 in SaveBitmapsBySize method.
• added SaveBitmapsEx method, it can export PDF page to bmp, jpeg, tif, png, gif file.
• added SaveBitmapsBySizeEx method, it can export PDF page to bmp, jpeg, tif, png, gif file.
• updated LoadPDF method, if the PDF password is not correct, it will return -2. If the PDF cannot display, it will return -1
• updated VB6, MS Access, C# 2010, C#2019, VB.NET 2010, VB.NET 2019, VC samples. 

Version 6.0 has been released (16 October 2024 released)

• updated PDF engine, fixed some content cannot display and it can display PDF Form information now. Please see this link https://www.viscomsoft.com/popular-solution/203/pdfviewer to know more about fixed display PDF issue
• improved display PDF speed. it can display PDF faster, include Zoom In, Zoom Out speed now.
• fixed search text cannot highlight correctly if the PDF rotated.
• added Autofill PDF form fields, save to image file or Export and Saves filled forms to new PDF file.
• added AutoFill PDF form field objects such as text boxes, check boxes, list boxes, combo boxes and radio buttons.
• added PDFFormFieldsCount,  PDFFormFieldsName, PDFFormFieldsLabel,  PDFFormFieldsWidgetType,PDFFormFieldsText, PDFFormFieldsIsCheck, PDFFormFieldsWidgetType, PDFFormFieldsCboListBoxIndex methods to Extract the data from filled-in PDF form fields.
• added PDFFormFieldsSetText, PDFFormFieldsSetChecked, PDFFormFieldsSetCboListBoxIndex methods to AutoFill PDF form fields.
• added PDFFormFieldsUpdate method save to image file or Saves filled forms to new PDF file.
• added VB6, VFP, C#2010, C#2019, VB.NET 2010, VB.NET 2019 PDFFormFields samples.

Version 5.5 has been released (5 December 2023 released)

• fixed first time open the PDF file, page panning with the mouse automatically issue when you moving the mouse over the control.
• added Mouse wheel event.you can change pages by scrolling mouse wheel or  zoom in or zoom out of page by scrolling mouse wheel. Let user navigate to page or zooming easily.
• added Unload PDF feature, now call LoadPDFFile method with empty string parameter, it will unload the PDF, clear the PDF on control.
• added GetCurrentPage, it will return current page number if you loaded multi-page PDF file. 
• fixed double click Middle Mouse button, it will display a icon and cannot hide it issue. 
• added Middle Mouse button events. MMouseButtonDown, MMouseButtonUp, MMouseButtonDblClk events. e.g. When you double click Middle Mouse button, then you can Print the PDF.
• added OnMouseWheel event.
• added SetControlFocus method, let the control received the OnMouseWheel event if the control lost the focus.
• updated VB6, VFP, C#2010, C#2019, VB.NET 2010, VB.NET 2019 Samples( change pages by scrolling mouse wheel).

Version 5.0 has been released (10 September 2023 released)

• added support open Unicode (e.g. Spanish, German, French, Chinese, Korean, Japanese,  Arabic and Hebrew) PDF File name.
• added support search Unicode (e.g. Spanish, German, French, Chinese, Korean, Japanese,  Arabic and Hebrew) text in PDF pages.
• updated SearchNextText and SearchPrevText , Search methods, these methods will return page number if found the word.  Now it will return which page you find the searched word.
• fixed crash issue if the PDF file is not loaded, then call PrinterSetPageRange or Search method.
• updated ExportText method, now it can support use Unicode File Name.
• removed UnicodeLoadPDFFile method, because LoadPDFFile method support open Unicode PDF File name now.
• add MFC100U.dll file, you need distribute this dll file if you use latest version.
• updated VB6, VB.NET, C#, VFP, MS Access, VC samples. 

Version 4.0 has been released (29 August 2022 released)

• rewrite the PDF engine. It fixed some PDF files cannot display or crash issue. It is Big Update.
• all features same as PDF Viewer SDK ActiveX 7.0 plus it include 64 bit PDF engine. It can create 64 bit PDF Viewer Application.
• support using on VS Studio 2022, because it include x64 and x86 dll files.
• updated VB6, C#, VB.NET, VFP, C samples.
  • updated Search method, added bBackward parameter, you can search the text from forward or backward first.
  • fixed the installer cannot installing pdfviewer.ocx on 32 bit windows OS.
  • added VB.NET 2015, C# 2015 samples.
  • added the SDK ActiveX supported on both x86 and x64 architectures.
  • added MS Access 2016 64bit samples.
  • added C# 2010, VB.NET 2010 x64 samples.
  • added support rotate at specific degree of PDF.
  • added support open protected PDF file.
  • added support print specific page of PDF file.
  • updated VB6, VC, C#2010, VB.NET 2010 samples.
  • added PDFPageNo, RotateAngle, Password properties. 

Version 3.1 has been released (2 April 2018 released)


Version 3.0 has been released (21 May 2017 released)

Version 2.0 has been released (1 December 2016 released)