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Jul 15, 2009 · You basically need a helper method to read a stream into memory. This works pretty well: public static byte[] readFully(InputStream stream) throws IOException { byte[] buffer = new byte[8192]; ByteArrayOutputStream baos = new ByteArrayOutputStream(); int bytesRead; while ((bytesRead = stream.read(buffer)) != -1) { baos.write(buffer, 0, bytesRead); } return baos.toByteArray(); }
Feb 19, 2020 · 8K+ Views. How to convert a PDF to byte array in Java - You can read data from a PDF file using the read () method of the FileInputStream class this method requires a byte array as a parameter.Exampleimport java.io.File; import java.io.FileInputStream; import java.io.ByteArrayOutputStream; public class PdfToByteArray { public static void main ...
You should replace the `getByteArrayFromSomeSource()` method with your own logic to obtain the byte array from the desired source. Then, we use the `FileOutputStream` class to write the byte array to a PDF file at the given file path. Example 3: Convert PDF to byte array using Apache PDFBox
Open a Connection to the URL: You can use URL.openStream() to open a connection and get an input stream of the PDF file. 3. Read the Stream into a Byte Array: Use a ByteArrayOutputStream to read the PDF content from the input stream. 4. Convert to ByteBuffer (if needed): You can convert the byte array to a ByteBuffer if required for further ...
Apr 22, 2022 · Method 2: Using readAllBytes () method of Files class. java.nio.file.Files class has pre-defined readAllBytes () method which reads all the bytes from a file. Procedure: Take a text file path. Convert that file into a byte array by calling Files.readAllBytes (). Print the byte array.
Jan 5, 2024 · byte [] byteArray = FileUtils.readFileToByteArray(new File (FILE_NAME)); assertArrayEquals(expectedByteArray, byteArray); As we see above, readFileToByteArray () reads the content of the specified file into a byte array in a straightforward way. The good thing about this method is that the file is always closed.
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Step 1: Create a content handler. Step 2: Create a PDF file locally in the system one is using. Step 3: Now, create a FileInputStream that has the same path where the created PDF file is residing. Step 4: For the PDF file, create a content parser with the help of the metadata type object. Step 5: The PDF parser class parses the PDF file.
