Spire.PDF 6.2.1 enhances the files merging and conversion from PDF to image

We're pleased to announce the release of Spire.PDF 6.2.1. This version mainly fixes some issues that occurred when merging PDF files, adding watermark and image, drawing text and converting PDF to image. See the content below for details.

Bug Fixes:

• Fixes the issue that the merged result was blank after merging files.
• Fixes the issue that the watermark and image were not added successfully in a file.
• Fixes the issue that the fill color of textbox was not set as "No Color".
• Fixes the issue that the method ApplyHighLight didn't work for a file.
• Fixes the issue that the drawing text overlapped when adding string “\n” in PdfGridCellContentList.
• Fixes the issue that the application threw NullReferenceException when converting PDF to image.
• Fixes the issue that the generated barcode returned an extra character “D” at the end of actual data when scanning.