Unable to download pdf in Android and iOS

Ionic Framework Ionic React
1

I am using Ionic React with Capacitor 7

I am unable to download receipt after it is generated in pdf format.
Sharing Receipt seems to work fine for both iOS and Android.
But I cannot download it.

    const downloadReceipt = async () => {
        setIsGeneratingPDF(true);

        try {
            const pdf = await generateReceiptPDF();
            if (!pdf) {
                throw new Error('PDF generation failed');
            }

            const fileName = `receipt_${id}_${Date.now()}.pdf`; // Unique file name
            const folderPath = 'Receipts'; // Subfolder for organization
            const fullPath = `${folderPath}/${fileName}`;

            // Convert to Blob
            const pdfBlob = new Blob([pdf.output('blob')], { type: 'application/pdf' });
            const pdfBase64 = await blobToBase64(pdfBlob);

            // Define directory based on platform (use Documents for better compatibility)
            const directory = Directory.Documents;

            // Request permissions for Android
            if (Capacitor.getPlatform() === 'android') {
                await requestPermissions();
            }

            // Ensure directory exists
            await ensureDirectoryExists(directory, folderPath);

            // Delete file if it exists
            await deleteIfExists(directory, fullPath);

            // Write the file
            await Filesystem.writeFile({
                path: fullPath,
                data: pdfBase64,
                directory,
            });

            console.log('File written successfully');

            const fileUri = await Filesystem.getUri({
                path: fullPath,
                directory,
            });

            if (Capacitor.getPlatform() === 'ios') {
                // Use Share API on iOS to allow the user to download or share the file
                await Share.share({
                    title: `Receipt #${id}`,
                    text: `Dear ${user?.name} ${user?.last_name}, here is your receipt #${id}!`,
                    url: fileUri.uri,
                    dialogTitle: 'Share Receipt',
                });
            } else if (Capacitor.getPlatform() === 'android') {
                // Open PDF File on Android
                //    await Browser.open({ url: fileUri.uri });
            } else {
                // For web, trigger direct download
                pdf.save(fileName);
            }

            setToastMessage('Receipt downloaded successfully!');
            setToastColor('success');
            setShowToast(true);
        } catch (error) {
            console.error('Error downloading receipt:', error);
            setToastMessage('Failed to download receipt. Please try again.');
            setToastColor('danger');
            setShowToast(true);
        } finally {
            setIsGeneratingPDF(false);
        }
    };```