Try this piece of code $pdf_base64 = “base64pdf.txt”; //Get File content from txt file $pdf_base64_handler = fopen($pdf_base64,’r’); $pdf_content = fread ($pdf_base64_handler,filesize($pdf_base64)); fclose ($pdf_base64_handler); //Decode pdf content $pdf_decoded = base64_decode ($pdf_content); //Write data back to pdf file $pdf = fopen (‘test.pdf’,’w’); fwrite ($pdf,$pdf_decoded); //close output file fclose ($pdf); echo ‘Done’;
Your encoded text is [B@6499375d. That is not Base64, something went wrong while encoding. That decoding code looks good. Use this code to convert the byte[] to a String before adding it to the URL: String encodedEmailString = new String(encodedEmail, “UTF-8”); // … String confirmLink = “Complete your registration by clicking on following” + “\n<a … Read more
Assuming the image data is already in the format you want, you don’t need ImageIO at all – you just need to write the data to the file: // Note preferred way of declaring an array variable byte[] data = Base64.decodeBase64(crntImage); try (OutputStream stream = new FileOutputStream(“c:/decode/abc.bmp”)) { stream.write(data); } (I’m assuming you’re using Java … Read more
Try this: import base64 imgdata = base64.b64decode(imgstring) filename=”some_image.jpg” # I assume you have a way of picking unique filenames with open(filename, ‘wb’) as f: f.write(imgdata) # f gets closed when you exit the with statement # Now save the value of filename to your database
Use Convert.TryFromBase64String from C# 7.2 public static bool IsBase64String(string base64) { Span<byte> buffer = new Span<byte>(new byte[base64.Length]); return Convert.TryFromBase64String(base64, buffer , out int bytesParsed); }
There’s no standard function for this. You’ll need to write your own one. Usage example: https://godbolt.org/z/MhRcNA const char digits[] = “0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz”; char *reverse(char *str) { char *end = str; char *start = str; if(!str || !*str) return str; while(*(end + 1)) end++; while(end > start) { int ch = *end; *end– = *start; *start++ = … Read more
Your Base64 string is not valid. It must be padded with = characters to have a length that is a multiple of 4. In your case: “eyJlbWFp….MTM3fQ==”. With this padding, initWithBase64EncodedString decodes the Base64 string correctly.
This is my solution for python 3.7 and without using PIL import base64 def readb64(uri): encoded_data = uri.split(‘,’)[1] nparr = np.fromstring(base64.b64decode(encoded_data), np.uint8) img = cv2.imdecode(nparr, cv2.IMREAD_COLOR) return img i hope that this solutions works for all
I think part of the problem you’re hitting is that jQuery.ajax does not natively support XHR2 blob/arraybuffer types which can nicely handle binary data (see Reading binary files using jQuery.ajax). If you use a native XHR object with xhr.responseType=”arraybuffer”, then read the response array and convert it to Base64, you’ll get what you want. Here’s a … Read more
Why not try the following code?: const buffer = Buffer.from(rawData, ‘base64’); const bufString = buffer.toString(‘hex’);