From d5c16857e347c389f5a337c154e331e927e961d2 Mon Sep 17 00:00:00 2001
From: SurendarSuri30 <surendar.m@venbainfotech.com>
Date: Sat, 8 Aug 2026 12:08:24 +0530
Subject: [PATCH] pdf blur issue fix

---
 .../claims_overview_pdf_export.dart           | 21 ++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/lib/presentation/claims_overview/claims_overview_pdf_export.dart b/lib/presentation/claims_overview/claims_overview_pdf_export.dart
index 859a860..c2495a8 100644
--- a/lib/presentation/claims_overview/claims_overview_pdf_export.dart
+++ b/lib/presentation/claims_overview/claims_overview_pdf_export.dart
@@ -47,8 +47,10 @@ const _capturePadding = 16.0;
 const _maxMeasureHeight = 1400.0;
 const _enrollmentMaxMeasureHeight = 1020.0;
 const _minCaptureHeight = 360.0;
-const _captureTimeout = Duration(seconds: 20);
-const _pdfEmbedMaxWidth = 960;
+const _captureTimeout = Duration(seconds: 30);
+/// Target embed width (~200 DPI on A4 landscape content area) for sharp text.
+const _pdfEmbedMaxWidth = 1800;
+const _pdfJpegQuality = 92;
 const _logoAsset = 'assets/Nhance-Logo-Final 1.png';
 const _pdfLogoHeight = 28.0;
 const _pdfPageMargin = pw.EdgeInsets.fromLTRB(10, 14, 10, 14);
@@ -101,7 +103,8 @@ Future<void> _preloadFonts() async {
   }
 }
 
-/// Shrinks and JPEG-encodes tab screenshots so [doc.save] stays fast.
+/// Optionally downscales and JPEG-encodes tab screenshots for PDF embed.
+/// Keeps high resolution so dashboard text/charts stay sharp when zoomed.
 Uint8List _compressTabImageForPdf(Uint8List pngBytes) {
   try {
     final decoded = img.decodePng(pngBytes);
@@ -112,11 +115,13 @@ Uint8List _compressTabImageForPdf(Uint8List pngBytes) {
       processed = img.copyResize(
         decoded,
         width: _pdfEmbedMaxWidth,
-        interpolation: img.Interpolation.average,
+        interpolation: img.Interpolation.cubic,
       );
     }
 
-    return Uint8List.fromList(img.encodeJpg(processed, quality: 82));
+    return Uint8List.fromList(
+      img.encodeJpg(processed, quality: _pdfJpegQuality),
+    );
   } catch (e) {
     debugPrint('PDF export: image compress skipped ($e)');
     return pngBytes;
@@ -293,10 +298,12 @@ Future<void> _waitForPaint() async {
 }
 
 double _capturePixelRatio({required bool isEnrollmentTab}) {
+  // 2x+ capture is required for crisp text when screenshots are
+  // scaled into A4 landscape PDF pages (especially on Flutter web).
   if (kIsWeb) {
-    return isEnrollmentTab ? 0.85 : 1.0;
+    return isEnrollmentTab ? 1.75 : 2.0;
   }
-  return isEnrollmentTab ? 1.1 : 1.35;
+  return isEnrollmentTab ? 1.75 : 2.25;
 }
 
 Future<ui.Image?> _rasterizeBoundary(