...

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfBoxUtils.kt

@@ -6,6 +6,7 @@ import android.graphics.drawable.BitmapDrawable
 import android.graphics.drawable.Drawable
 import android.net.Uri
 import com.base.pdfviewerscannerwhite.helper.MyApplication.Companion.context
+import com.base.pdfviewerscannerwhite.utils.LogEx
 import com.base.pdfviewerscannerwhite.utils.UriUtils.readFileToByteArray
 import com.tom_roush.pdfbox.pdmodel.PDDocument
 import com.tom_roush.pdfbox.pdmodel.PDPage
@@ -25,7 +26,6 @@ object PdfBoxUtils {
 
     private val TAG = "PdfUtils"
 
-
     fun getNumberOfPages(filePath: String, password: String? = null, uri: String? = null): Int {
         val document =
             loadPDDocument(path = filePath, password, uri)
@@ -90,7 +90,8 @@ object PdfBoxUtils {
         sourceFilePath: String,
         userPassword: String,
         ownerPassword: String
-    ) {
+    ): Boolean {
+
         try {
             PDDocument.load(File(sourceFilePath)).use { document ->
                 val ap = AccessPermission()
@@ -102,10 +103,14 @@ object PdfBoxUtils {
                 val spp = StandardProtectionPolicy(userPassword, ownerPassword, ap)
                 document.protect(spp)
                 document.save(File(sourceFilePath))
+                LogEx.logDebug(TAG, "setPassword finish")
             }
         } catch (e: Exception) {
-
+            LogEx.logDebug(TAG, "setPassword Exception ${e.printStackTrace()}")
+            e.printStackTrace()
+            return false
         }
+        return true
     }
 
     fun clearPassword(filePath: String, password: String) {

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfPresenter.kt

@@ -13,8 +13,6 @@ import com.base.pdfviewerscannerwhite.utils.LogEx
 import com.base.pdfviewerscannerwhite.utils.UriUtils.readFileToByteArray
 import com.tom_roush.pdfbox.multipdf.PDFMergerUtility
 import com.tom_roush.pdfbox.pdmodel.PDDocument
-import java.io.ByteArrayInputStream
-import java.io.ByteArrayOutputStream
 import java.io.File
 
 
@@ -142,30 +140,46 @@ class PdfPresenter(
             val mergerUtility = PDFMergerUtility()
             mergerUtility.destinationFileName = mergePath
 
+            //解密
+            PdfMergeActivity.mergePdfList.filter { it.state == 1 }.forEach {
+                PdfBoxUtils.clearPassword(it.path, it.password)
+            }
+
             LogEx.logDebug(TAG, "mergePdf ${mergePdfList.size}")
             PdfMergeActivity.mergePdfList.forEach { documentBean ->
                 LogEx.logDebug(TAG, "mergePdf item= ${documentBean.path} ${documentBean.state}")
-                if (documentBean.state == 0) {
-                    mergerUtility.addSource(File(documentBean.path))
-                } else {
-                    LogEx.logDebug(TAG, "mergePdf password=${documentBean.password}")
-                    try {
-                        val pdfDocument = PDDocument.load(File(documentBean.path), documentBean.password)
-                        LogEx.logDebug(TAG, "mergePdf pdfDocument ${pdfDocument.numberOfPages}")
-                        val byteArrayOutputStream = ByteArrayOutputStream(1024 * 2)
-                        pdfDocument.save(byteArrayOutputStream)
-                        LogEx.logDebug(TAG, "mergePdf byteArrayOutputStream ${byteArrayOutputStream.size()}")
-                        pdfDocument.close()
-                        val inputStream = ByteArrayInputStream(byteArrayOutputStream.toByteArray())
-                        LogEx.logDebug(TAG, "mergePdf  inputStream")
-                        mergerUtility.addSource(inputStream)
-                    } catch (e: Exception) {
-                        LogEx.logDebug(TAG, "mergePdf Exception ${e.printStackTrace()}")
-                    }
-                    LogEx.logDebug(TAG, "mergePdf inputStream")
-                }
+
+                //带密码  mergerUtility.addSource(inputStream) 不行
+                mergerUtility.addSource(File(documentBean.path))
+
+//                if (documentBean.state == 0) {
+//                    mergerUtility.addSource(File(documentBean.path))
+//                } else {
+//                    LogEx.logDebug(TAG, "mergePdf password=${documentBean.password}")
+//                    try {
+//                        val pdfDocument = PDDocument.load(File(documentBean.path), documentBean.password)
+//                        LogEx.logDebug(TAG, "mergePdf pdfDocument ${pdfDocument.numberOfPages}")
+//                        val byteArrayOutputStream = ByteArrayOutputStream()
+//                        pdfDocument.save(byteArrayOutputStream)
+//                        LogEx.logDebug(TAG, "mergePdf byteArrayOutputStream ${byteArrayOutputStream.size()}")
+//                        pdfDocument.close()
+//                        val inputStream = ByteArrayInputStream(byteArrayOutputStream.toByteArray())
+//                        LogEx.logDebug(TAG, "mergePdf  inputStream")
+//                        mergerUtility.addSource(inputStream)
+//                    } catch (e: Exception) {
+//                        LogEx.logDebug(TAG, "mergePdf Exception ${e.printStackTrace()}")
+//                    }
+//                    LogEx.logDebug(TAG, "mergePdf inputStream")
+//                }
             }
             mergerUtility.mergeDocuments(null)
+
+            //重新加密
+            PdfMergeActivity.mergePdfList.filter { it.state == 1 }.forEach {
+                val flag = PdfBoxUtils.setPassword(it.path, it.password, it.password)
+                LogEx.logDebug(TAG, "重新加密 flag=$flag ${it.path} ${it.password}")
+            }
+
             mergePdfList.clear()
             LogEx.logDebug(TAG, "mergePdf finish")
             isSuccess = true
@@ -173,6 +187,7 @@ class PdfPresenter(
 
         }
 
+
         finishAction.invoke(isSuccess)
     }.start()