Create app.py

app.py

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+from fastapi import FastAPI, File, UploadFile, Form
+from fastapi.responses import Response
+from fastapi.middleware.cors import CORSMiddleware
+import fitz  # PyMuPDF
+from fpdf import FPDF
+import io
+
+app = FastAPI()
+
+# --- CORS SETUP (Bahut Zaroori Hai) ---
+# Isse allow hota hai ki aapka HTML file is server se baat kar sake
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],  # Security ke liye baad mein ise apni site ka URL kar dena
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+@app.get("/")
+def home():
+    return {"message": "PDF Editor API is Running!"}
+
+@app.post("/extract-text")
+async def extract_text(file: UploadFile = File(...)):
+    # PDF read karke text nikalna
+    content = await file.read()
+    doc = fitz.open(stream=content, filetype="pdf")
+    full_text = ""
+    for page in doc:
+        full_text += page.get_text() + "\n\n"  # Page break ke liye gap
+    
+    return {"text": full_text}
+
+@app.post("/generate-pdf")
+async def generate_pdf(text: str = Form(...)):
+    # Text se nayi PDF banana
+    pdf = FPDF()
+    pdf.set_auto_page_break(auto=True, margin=15)
+    pdf.add_page()
+    pdf.set_font("Arial", size=12)
+    
+    # Text processing to handle basic encoding issues
+    try:
+        # Latin-1 encoding hack for FPDF (Hindi support nahi karega default mein)
+        safe_text = text.encode('latin-1', 'replace').decode('latin-1')
+        pdf.multi_cell(0, 10, safe_text)
+    except Exception as e:
+        return {"error": str(e)}
+
+    # Byte stream mein save karna
+    pdf_output = io.BytesIO()
+    # Output as string and encode to bytes
+    pdf_string = pdf.output(dest='S')
+    pdf_output.write(pdf_string.encode('latin-1'))
+    pdf_output.seek(0)
+    
+    # File return karna
+    return Response(content=pdf_output.getvalue(), media_type="application/pdf", headers={"Content-Disposition": "attachment; filename=edited_file.pdf"})