Product: Apryse SDK
Product Version: Latest
Please give a brief summary of your issue:
No size and date when adding attachment to a PDF with the SDK
Hello
I’m trying to add attachments to a PDF with the SDK.
I managed to find a way using a temporarily file, heres the code
const doc = await PDFNet.PDFDoc.createFromBuffer(mainFileBuffer);
const fs = require('fs').promises;
const path = require('path');
const os = require('os');
const attachmentPromises = attachmentKeys.map(async (key) => {
try {
const docObj = JSON.parse(req.body[key]);
const encodedDocumentId = encodeURIComponent(docObj.documentId);
const encodedFileName = encodeURIComponent(docObj.fileName);
const url = `${env.basic.RENDER_URL}${encodedDocumentId}/${encodedFileName}`;
console.log(`Downloading attachment from ${url}`);
const response = await axios.get(url, { responseType: 'arraybuffer' });
const attachmentBuffer = Buffer.from(response.data);
// Create temp dir and file
const tempDir = await fs.mkdtemp(path.join(os.tmpdir(), 'pdf-attachments-'));
const tempFilePath = path.join(tempDir, docObj.fileName);
await fs.writeFile(tempFilePath, attachmentBuffer);
// File spec creation
const filespec = await PDFNet.FileSpec.create(doc, tempFilePath, true);
filespec.setDesc(docObj.fileName);
// adding to pdf
obj = await filespec.getSDFObj();
await obj.putText("F", docObj.fileName);
await obj.putText("UF", docObj.fileName);
await doc.addFileAttachment(docObj.fileName, filespec);
console.log(`Attached ${docObj.fileName}`);
// Supprimer le fichier temporaire
await fs.unlink(tempFilePath);
await fs.rmdir(tempDir);
} catch (error) {
console.error(`Error processing attachment ${key}:`, error);
throw error;
}
});
await Promise.all(attachmentPromises);
// Save new pdf
const outputBuffer = await doc.saveMemoryBuffer(PDFNet.SDFDoc.SaveOptions.e_linearized);
console.log('PDF saved with attachments');
// send pdf
res.contentType('application/pdf').send(Buffer.from(outputBuffer));
Two problems :
1 - The date and size are unknown in the pdf, see screenshot :
I tried this but it doesnt work :
await obj.putNumber('Size', attachmentBuffer.byteLength); await obj.putString('CreationDate', new Date().toISOString()); await obj.putString('ModDate', new Date().toISOString());
2 - I would like to avoid having to store the document and work with the stream directly. I haven’t found a way to do it yet
I tried to follow this Attach file (based on byte[] / MemoryStream) into .pdf without roundtrip to temporary file? but createIndirectStream only works with filters and I cannot wrap my head around how it works. Any idea how to manage this?
Cheers
