Version 19.0 (19 May 2022 released)

  • updated Advanced PDF Viewer , fixed cannot display texts on some PDF version 1.6 or 1.7 files and some text fields cannot display in Fillable PDF file. It is Big Update.
  • fixed use Advanced PDF Viewer load the PDF file, then call Save or SaveBySize or PrintImage method. It will locked the PDF file
  • fixed output PDF file cannot open when call OCR2SearchableMultipagePDF or OCR2SearchablePDF method.
  • updated the OCR engine. Now it is more easy to use and install. support English, German, Fraktur, Italian, Dutch, Portuguese,Spanish language dictionary only. Now output searchable PDF file will increase accuracy.
  • updated output PDF image quality when you input PDF file and call OCR2SearchableMultipagePDF or OCR2SearchablePDF method.
  • added three new OCRRecognizeMode (3-5) modes. Clear Text Background Mode, Clear Text Background Plus enhance brightness Mode and Clear Noise Mode. It will improve the OCR quality and increase accuracy.
  • removed OCR2SearchablePDFFontFile, OCR2SearchablePDFFontName properties.
  • fixed OCR2SearchableMultipagePDF or OCR2SearchablePDF method, it cannot OCR last character of image.
  • added viscomocrconverter.dll.
  • updated MS Access 2016, VB.NET 2010, VB.NET 2019, C#2010, C#2019, VB6, VFP OCR,OCRPDF samples.
  • Version 18.0 (20 October 2021 released)

  • fixed BarCodeReadFullPage , BarCodeReadByZone methods cannot scan multiple barcode and cannot detect some QR Code.
  • fixed inserted texts vertically flipped or mirror issue when use PDFEditAddWatermarkText1 and PDFEditAddWatermarkText2 methods.
  • fixed inserted image vertically flipped or mirror issue when use PDFEditAddWatermarkImage methods.
  • updated PDFEditDeletePage method , after deleted the page, it will reduce PDF file size.
  • updated PDFEditSplit method , after split the PDF files.it will reduce the both PDF files size (In old version, if PDF file size is 100MB, after split PDF into two PDF files. The file size remain 100MB for Each PDF file.)
  • updated PDFEditMergeEx method, It will reduces the size of a Merged PDF file for selected the start page and end page.
  • updated PDFEditAddPage method, it will reduce the output PDF files size. The old verson will double the output PDF file size.
  • added PrintImage and PrintImage2Printer methods support display the text in multiple pages if inserted text using DrawText for multiple pages.
  • updated VB.NET 2010, VB.NET 2019 PDFEdit samples.
  • Version 17.0 (8 July 2021 released)


    Version 16.0 (11 February 2021 released)

    Version 15.5 (22 April 2020 released)

    Version 15.0 (12 December 2019 released)

    Version 14.5 (26 February 2019 released)


    Version 14.0 (30 July 2018 released)


    Version 13.5 (16 December 2017 released)


    Version 13.0 (20 July 2016 released)


    Version 12.6 (16 April 2016 released)

    Version 12.5 (17 October 2015 released)


    Version 12.1 (17 October 2014 released)


    Version 12.0 (20 July 2014 released)


    Version 11.1 (25 January 2014 released)

    Version 11.0 (12 June 2013 released)


    Version 10.5 (28 May 2013 released)

    Version 10.1 (09 December 2012 released)


    Version 10.0 (28 August 2012 released)


    Version 9.5 (5 February 2012 released)


    Version 9.4 (1 December 2011 released)

    Version 9.3 (4 Oct 2011 released)

    Version 9.2 (14 Aug 2011 released)


    Version 9.0 (25 March 2011 released)

    Version 8.8 (11 March 2011 released)

    Version 8.5 (20 Jan 2011 released)

    Version 8.0 (3 Nov, 2010 released)


    Version 7.5 (13 July 2010 released)



    Version 7.2 (27 Jan 2010 released)

    Version 7.0 (28 June 2009 released)