com.itextpdf.kernel.pdf.VersionConforming Maven / Gradle / Ivy
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Authors: iText Software.
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package com.itextpdf.kernel.pdf;
import com.itextpdf.io.LogMessageConstant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.text.MessageFormat;
public class VersionConforming {
public static final String DEPRECATED_AES256_REVISION = "It seems that PDF 1.7 document encrypted with AES256 was updated to PDF 2.0 version and StampingProperties#preserveEncryption flag was set: encryption shall be updated via WriterProperties#setStandardEncryption method. Standard security handler was found with revision 5, which is deprecated and shall not be used in PDF 2.0 documents.";
public static final String DEPRECATED_ENCRYPTION_ALGORITHMS = "Encryption algorithms STANDARD_ENCRYPTION_40, STANDARD_ENCRYPTION_128 and ENCRYPTION_AES_128 (see com.itextpdf.kernel.pdf.EncryptionConstants) are deprecated in PDF 2.0. It is highly recommended not to use it.";
public static final String DEPRECATED_NEED_APPEARANCES_IN_ACROFORM = "NeedAppearances has been deprecated in PDF 2.0. Appearance streams are required in PDF 2.0.";
public static final String DEPRECATED_XFA_FORMS = "XFA is deprecated in PDF 2.0. The XFA form will not be written to the document";
private static final Logger logger = LoggerFactory.getLogger(VersionConforming.class);
public static boolean validatePdfVersionForDictEntry(PdfDocument document, PdfVersion expectedVersion, PdfName entryKey, PdfName dictType) {
if (document != null && document.getPdfVersion().compareTo(expectedVersion) < 0) {
logger.warn(MessageFormat.format(LogMessageConstant.VERSION_INCOMPATIBILITY_FOR_DICTIONARY_ENTRY, entryKey, dictType, expectedVersion, document.getPdfVersion()));
return true;
} else {
return false;
}
}
public static boolean validatePdfVersionForDeprecatedFeatureLogWarn(PdfDocument document, PdfVersion expectedVersion, String deprecatedFeatureLogMessage) {
if (document.getPdfVersion().compareTo(expectedVersion) >= 0) {
logger.warn(deprecatedFeatureLogMessage);
return true;
} else {
return false;
}
}
public static boolean validatePdfVersionForDeprecatedFeatureLogError(PdfDocument document, PdfVersion expectedVersion, String deprecatedFeatureLogMessage) {
if (document.getPdfVersion().compareTo(expectedVersion) >= 0) {
logger.error(deprecatedFeatureLogMessage);
return true;
} else {
return false;
}
}
}