Add application file

app.py

@@ -0,0 +1,31 @@
+import gradio as gr
+from PyPDF2 import PdfReader
+
+def read_pdf(*inps):
+    pdf_file, start_index, end_index, text_rule = inps
+    reader = PdfReader(pdf_file)
+    pages = reader.pages 
+    text = ""
+    for page in pages[int(start_index):int(end_index)+1]:
+        sub = page.extract_text()
+        if text_rule:
+            for rule in text_rule.split(";"):
+                sub = eval(rule) 
+        text += sub
+    return text 
+
+with gr.Blocks() as demo:
+    with gr.Row():
+        with gr.Column():
+            pdf_file = gr.File(label="PDF", interactive=True)
+            with gr.Row():
+                start_index = gr.Number(label="start_page",value=0)
+                end_index = gr.Number(label="end_page",value=0)
+            text_rule = gr.Textbox(label="rule", value='sub.replace(" \n", "\n");sub.replace("  ", " ")')
+            submit = gr.Button(value="submit")
+        text_output = gr.Textbox(interactive=True)
+    
+    inputs = [pdf_file, start_index, end_index, text_rule]
+    submit.click(fn=read_pdf, inputs=inputs, outputs=text_output)
+
+demo.launch()