# General issues

- [Archiving jobs agent timeout](/pdf-converter-for-notes/troubleshooting/general-issues/archiving-jobs-agent-timeout.md)
- [Concurrent execution issues](/pdf-converter-for-notes/troubleshooting/general-issues/concurrent-execution-issues.md)
- [Activation error: Signature validation error](/pdf-converter-for-notes/troubleshooting/general-issues/signatureerror.md): "Activation error: Signature validation error." is a known issue that was caused by a PHP upgrade on our license registration server.
- [Conversion speed is slow](/pdf-converter-for-notes/troubleshooting/general-issues/conversion-speed-is-slow.md)
- [Document links not working](/pdf-converter-for-notes/troubleshooting/general-issues/document-links-not-working.md)
- [Email images do not appear in PDF](/pdf-converter-for-notes/troubleshooting/general-issues/email-images-do-not-appear-in-pdf.md)
- [Header and footer not visible in my emails](/pdf-converter-for-notes/troubleshooting/general-issues/header-and-footer-not-visible-in-my-emails.md)
- [Header and footer not visible or partially visible](/pdf-converter-for-notes/troubleshooting/general-issues/header-and-footer-not-visible-or-partially-visible.md)
- [How to enable SWING PDF Converter with Symantec Endpoint Protection (SEP)](/pdf-converter-for-notes/troubleshooting/general-issues/how-to-enable-swing-pdf-converter-with-symantec-endpoint-protection-sep.md)
- [Numerous "Trust to..." prompts appearing](/pdf-converter-for-notes/troubleshooting/general-issues/numerous-trust-to-prompts-appearing.md)
- [PDF toolbar icon does not appear after installation](/pdf-converter-for-notes/troubleshooting/general-issues/toolbar-icon-not-shown.md)
- [PDF toolbar icon not shown in IBM Notes 9 toolbar](/pdf-converter-for-notes/troubleshooting/general-issues/pdf-toolbar-icon-not-shown-in-ibm-notes-9-toolbar.md)
- [PDF toolbar icon is still on my toolbar after uninstalling](/pdf-converter-for-notes/troubleshooting/general-issues/pdf-toolbar-icon-is-still-on-my-toolbar-after-uninstalling.md)
- [Select categories / folders applet is failing to start](/pdf-converter-for-notes/troubleshooting/general-issues/select-categories-folders-applet-is-failing-to-start.md)
- [ZIP files can not be detached from PDF](/pdf-converter-for-notes/troubleshooting/general-issues/zip-files-can-not-be-detached-from-pdf.md)
- [PDF fonts not embedded for Asian/Arabic documents](/pdf-converter-for-notes/troubleshooting/general-issues/pdf-fonts-not-embedded-for-asian-arabic-documents.md)
- [Thai symbols not shown in PDF document](/pdf-converter-for-notes/troubleshooting/general-issues/thai-symbols-not-shown-in-pdf-document.md): To convert documents with Thai symbols one of the required fonts must be installed on the system