Update quread/export_pdf.py

quread/export_pdf.py

@@ -1,15 +1,37 @@
 # quread/export_pdf.py
-from markdown import markdown
-from weasyprint import HTML
+from reportlab.lib.pagesizes import LETTER
+from reportlab.pdfgen import canvas
+from reportlab.lib.units import inch
+import textwrap
 
 
 def md_to_pdf(markdown_text: str, output_path: str):
     """
-    Convert Markdown text to a PDF file.
+    Convert Markdown-like text to a simple PDF.
+    Pure Python, HF-Spaces safe (no system deps).
     """
-    html = markdown(
-        markdown_text,
-        extensions=["fenced_code", "tables"]
-    )
 
-    HTML(string=html).write_pdf(output_path)
+    c = canvas.Canvas(output_path, pagesize=LETTER)
+    width, height = LETTER
+
+    x_margin = 1 * inch
+    y_margin = 1 * inch
+    max_width = width - 2 * x_margin
+
+    text_obj = c.beginText()
+    text_obj.setTextOrigin(x_margin, height - y_margin)
+    text_obj.setFont("Times-Roman", 11)
+
+    for line in markdown_text.splitlines():
+        wrapped = textwrap.wrap(line, 95) or [""]
+        for wline in wrapped:
+            if text_obj.getY() < y_margin:
+                c.drawText(text_obj)
+                c.showPage()
+                text_obj = c.beginText()
+                text_obj.setTextOrigin(x_margin, height - y_margin)
+                text_obj.setFont("Times-Roman", 11)
+            text_obj.textLine(wline)
+
+    c.drawText(text_obj)
+    c.save()