News & Releases
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Spire.PDF 7.8.2 supports adding invisible digital signatures
We are happy to announce the release of Spire.PDF 7.8.2. This version supports adding invisible digital signatures, enhances the conversions from PDF to images/SVG and also fixes the issues occurred in the course of printing PDF files. More details are listed as follows.
Here is a list of changes made in this release
| Category | ID | Description |
| New feature | SPIREPDF-3288 | Supports adding invisible digital signatures.
PdfOrdinarySignatureMaker signatureMaker = new PdfOrdinarySignatureMaker(doc, x509);
signatureMaker.MakeSignature("signName");
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| Bug | SPIREPDF-536 SPIREPDF-1854 SPIREPDF-2194 SPIREPDF-2371 SPIREPDF-2382 SPIREPDF-4154 |
Fixes the issue that the result was incorrect when verifying the signature. |
| Bug | SPIREPDF-808 SPIREPDF-1251 |
Fixes the issue that the application threw the error "ArgumentException" when verifying the signature. |
| Bug | SPIREPDF-984 | WPF lib supports converting PDF to Word. |
| Bug | SPIREPDF-2113 | Fixes the issue that the content was incorrect after converting PDF to images. |
| Bug | SPIREPDF-2446 | Fixes the issue that the application threw the error "IndexOutOfRangeException" when printing the PDF file. |
| Bug | SPIREPDF-2481 | Fixes the issue that the application threw the error "IndexOutOfRangeException" when converting PDF to images. |
| Bug | SPIREPDF-2677 | Fixes the issue that the background color of the image was changed after encrypting the PDF file. |
| Bug | SPIREPDF-2920 | Fixes the issue that the content of the output file was missing after using "CreateTemplate" to draw template. |
| Bug | SPIREPDF-3037 | Fixes the issue that the application threw the error "StackOverflowException" when converting PDF to images. |
| Bug | SPIREPDF-3095 | Optimizes the time for filling forms and merging files. |
| Bug | SPIREPDF-3228 SPIREPDF-4235 SPIREPDF-4479 |
Fixes the printout was incorrect after printing the PDF. |
| Bug | SPIREPDF-4328 | Fixes the issue that the file in the print queue was too large when printing the PDF file. |
| Bug | SPIREPDF-4406 | Fixes the issue that the application threw the error "OutOfMemoryException" when converting PDF to images. |
| Bug | SPIREPDF-4415 SPIREPDF-4466 |
Fixes the issue that the output files were too large after splitting the PDF file. |
| Bug | SPIREPDF-4440 | Fixes the issue that the application threw the error "NullReferenceException" when extracting text from PDF. |
| Bug | SPIREPDF-4448 | Fixes the issue that the application threw the error "NullReferenceException" when calling the method "AppendPage". |
| Bug | SPIREPDF-4457 | Fixes the issue that the application threw the error "NullReferenceException" when printing the PDF. |
| Bug | SPIREPDF-4463 | Fixes the issue that the application threw the error "ArgumentException" when converting PDF to SVG. |
| Bug | SPIREPDF-4465 | Fixes the issue that the mime type of the added attachment was incorrect. |
Click the link to download Spire.PDF 7.8.2:
More information of Spire.PDF new release or hotfix:
