Knowledge Base

Symptom:

When you read a file from local disk, you may receive the following error message returned by our SDK:

The file type is not supported

Causes:

The problem may be caused by one of the followings.

1. The loaded file type may not be PNG, JPG, BMP, GIF, TIF or PDF on Windows OS.
2. Reading barcode from PDF files on Mac OS X.
3. Missing DynamicPdf.dll or DynamicPdfx64.dll in your application.

Resolutions:

Please find the corresponding solution from the followings.

1. Convert the file type to PNG, JPG, BMP, GIF, TIF or PDF on Windows OS
2. The feature of reading barcode from PDF files on Mac OS X will be supported soon.
3. Copy DynamicPdf.dll and DynamicPdfx64.dll from installation directory of Dynamsoft Barcode Reader, and paste them into the same folder as DynamsoftBarcodeReaderx86.dll or DynamsoftBarcodeReaderx64.dll. Typically they could be found at:
   
   C:\Program Files (x86)\Dynamsoft\Barcode Reader {Version Number}\Components\C_C++\Redist\