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pdftools.py
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295 lines (273 loc) · 9.92 KB
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# Ultroid - UserBot
# Copyright (C) 2020 TeamUltroid
#
# This file is a part of < https://github.com/TeamUltroid/Ultroid/ >
# PLease read the GNU Affero General Public License in
# <https://www.github.com/TeamUltroid/Ultroid/blob/main/LICENSE/>.
"""
✘ Commands Available -
• `{i}pdf <page num> <reply to pdf file>`
Extract nd Send page as a Image.(note-: For Extraction all pages just use .pdf)
• `{i}pdtext <page num> <reply to pdf file>`
Extract Text From the Pdf.(note-: For Extraction all text just use .pdtext)
• `{i}pdscan <reply to image>`
It scan, crop nd send img as pdf.
• `{i}pdsave <reply to image/pdf>`
It scan, crop nd save file to merge u can merge many pages as a single pdf.
• `{i}pdsend `
Merge nd send the Pdf to collected from .pdsave.
"""
import os
import shutil
import cv2
import imutils
import numpy as np
import PIL
from imutils.perspective import four_point_transform
from PyPDF2 import PdfFileMerger, PdfFileReader, PdfFileWriter
from skimage.filters import threshold_local
from . import *
if not os.path.exists("pdf/"):
os.makedirs("pdf/")
@ultroid_cmd(
pattern="pdf ?(.*)",
)
async def pdfseimg(event):
ok = await event.get_reply_message()
msg = event.pattern_match.group(1)
if not ok and ok.document and ok.document.mime_type == "application/pdf":
await eor(event, "`Reply The pdf u Want to Download..`")
return
xx = await eor(event, "Processing...")
if not msg:
d = os.path.join("pdf/", "hehe.pdf")
await event.client.download_media(ok, d)
pdfp = "pdf/hehe.pdf"
pdfp.replace(".pdf", "")
pdf = PdfFileReader(pdfp)
for num in range(pdf.numPages):
pw = PdfFileWriter()
pw.addPage(pdf.getPage(num))
with open(os.path.join("pdf/ult{}.png".format(num + 1)), "wb") as f:
pw.write(f)
os.remove(pdfp)
a = os.listdir("pdf/")
for z in a:
lst = [f"pdf/{z}"]
await event.client.send_file(event.chat_id, lst, album=True)
shutil.rmtree("pdf")
os.makedirs("pdf/")
await xx.delete()
if msg:
o = int(msg) - 1
d = os.path.join("pdf/", "hehe.pdf")
await event.client.download_media(ok, d)
pdfp = "pdf/hehe.pdf"
pdfp.replace(".pdf", "")
pdf = PdfFileReader(pdfp)
pw = PdfFileWriter()
pw.addPage(pdf.getPage(o))
with open(os.path.join("ult.png"), "wb") as f:
pw.write(f)
os.remove(pdfp)
await event.client.send_file(
event.chat_id, "ult.png", reply_to=event.reply_to_msg_id
)
os.remove("ult.png")
await xx.delete()
@ultroid_cmd(
pattern="pdtext ?(.*)",
)
async def pdfsetxt(event):
ok = await event.get_reply_message()
msg = event.pattern_match.group(1)
if not ok and ok.document and ok.document.mime_type == "application/pdf":
await eor(event, "`Reply The pdf u Want to Download..`")
return
xx = await eor(event, "`Processing...`")
if not msg:
dl = await event.client.download_media(ok)
pdf = PdfFileReader(dl)
text = f"{dl.split('.')[0]}.txt"
with open(text, "w") as f:
for page_num in range(pdf.numPages):
pageObj = pdf.getPage(page_num)
txt = pageObj.extractText()
f.write("Page {0}\n".format(page_num + 1))
f.write("".center(100, "-"))
f.write(txt)
await event.client.send_file(
event.chat_id, text, reply_to=event.reply_to_msg_id
)
os.remove(text)
os.remove(dl)
await xx.delete()
return
if "_" in msg:
u, d = msg.split("_")
dl = await event.client.download_media(ok)
a = PdfFileReader(dl)
str = ""
for i in range(int(u) - 1, int(d)):
str += a.getPage(i).extractText()
text = f"{dl.split('.')[0]} {msg}.txt"
with open(text, "w") as f:
f.write(str)
await event.client.send_file(
event.chat_id, text, reply_to=event.reply_to_msg_id
)
os.remove(text)
os.remove(dl)
else:
u = int(msg) - 1
dl = await event.client.download_media(ok)
a = PdfFileReader(dl)
str = a.getPage(u).extractText()
text = f"{dl.split('.')[0]} Pg-{msg}.txt"
with open(text, "w") as f:
f.write(str)
await event.client.send_file(
event.chat_id, text, reply_to=event.reply_to_msg_id
)
os.remove(text)
os.remove(dl)
await xx.delete()
@ultroid_cmd(
pattern="pdscan ?(.*)",
)
async def imgscan(event):
ok = await event.get_reply_message()
if not (ok and (ok.media)):
await eor(event, "`Reply The pdf u Want to Download..`")
return
ultt = await ok.download_media()
if not ultt.endswith(("png", "jpg", "jpeg", "webp")):
await eor(event, "`Reply to a Image only...`")
os.remove(ultt)
return
xx = await eor(event, "`Processing...`")
image = cv2.imread(ultt)
original_image = image.copy()
ratio = image.shape[0] / 500.0
image = imutils.resize(image, height=500)
image_yuv = cv2.cvtColor(image, cv2.COLOR_BGR2YUV)
image_y = np.zeros(image_yuv.shape[0:2], np.uint8)
image_y[:, :] = image_yuv[:, :, 0]
image_blurred = cv2.GaussianBlur(image_y, (3, 3), 0)
edges = cv2.Canny(image_blurred, 50, 200, apertureSize=3)
contours, hierarchy = cv2.findContours(
edges, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE
)
polygons = []
for cnt in contours:
hull = cv2.convexHull(cnt)
polygons.append(cv2.approxPolyDP(hull, 0.01 * cv2.arcLength(hull, True), False))
sortedPoly = sorted(polygons, key=cv2.contourArea, reverse=True)
cv2.drawContours(image, sortedPoly[0], -1, (0, 0, 255), 5)
simplified_cnt = sortedPoly[0]
if len(simplified_cnt) == 4:
cropped_image = four_point_transform(
original_image, simplified_cnt.reshape(4, 2) * ratio
)
gray_image = cv2.cvtColor(cropped_image, cv2.COLOR_BGR2GRAY)
T = threshold_local(gray_image, 11, offset=10, method="gaussian")
ok = (gray_image > T).astype("uint8") * 255
if len(simplified_cnt) != 4:
ok = cv2.detailEnhance(original_image, sigma_s=10, sigma_r=0.15)
cv2.imwrite("o.png", ok)
image1 = PIL.Image.open("o.png")
im1 = image1.convert("RGB")
scann = f"Scanned {ultt.split('.')[0]}.pdf"
im1.save(scann)
await event.client.send_file(event.chat_id, scann, reply_to=event.reply_to_msg_id)
await xx.delete()
os.remove(ultt)
os.remove("o.png")
os.remove(scann)
@ultroid_cmd(
pattern="pdsave ?(.*)",
)
async def savepdf(event):
ok = await event.get_reply_message()
if not (ok and (ok.media)):
await eor(
event, "`Reply to Images/pdf which u want to merge as a single pdf..`"
)
return
ultt = await ok.download_media()
if ultt.endswith(("png", "jpg", "jpeg", "webp")):
xx = await eor(event, "`Processing...`")
image = cv2.imread(ultt)
original_image = image.copy()
ratio = image.shape[0] / 500.0
image = imutils.resize(image, height=500)
image_yuv = cv2.cvtColor(image, cv2.COLOR_BGR2YUV)
image_y = np.zeros(image_yuv.shape[0:2], np.uint8)
image_y[:, :] = image_yuv[:, :, 0]
image_blurred = cv2.GaussianBlur(image_y, (3, 3), 0)
edges = cv2.Canny(image_blurred, 50, 200, apertureSize=3)
contours, hierarchy = cv2.findContours(
edges, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE
)
polygons = []
for cnt in contours:
hull = cv2.convexHull(cnt)
polygons.append(
cv2.approxPolyDP(hull, 0.01 * cv2.arcLength(hull, True), False)
)
sortedPoly = sorted(polygons, key=cv2.contourArea, reverse=True)
cv2.drawContours(image, sortedPoly[0], -1, (0, 0, 255), 5)
simplified_cnt = sortedPoly[0]
if len(simplified_cnt) == 4:
cropped_image = four_point_transform(
original_image, simplified_cnt.reshape(4, 2) * ratio
)
gray_image = cv2.cvtColor(cropped_image, cv2.COLOR_BGR2GRAY)
T = threshold_local(gray_image, 11, offset=10, method="gaussian")
ok = (gray_image > T).astype("uint8") * 255
if len(simplified_cnt) != 4:
ok = cv2.detailEnhance(original_image, sigma_s=10, sigma_r=0.15)
cv2.imwrite("o.png", ok)
image1 = PIL.Image.open("o.png")
im1 = image1.convert("RGB")
a = dani_ck("pdf/scan.pdf")
im1.save(a)
await xx.edit(
f"Done, Now Reply Another Image/pdf if completed then use {hndlr}pdsend to merge nd send all as pdf",
)
os.remove("o.png")
elif ultt.endswith(".pdf"):
a = dani_ck("pdf/scan.pdf")
await ultroid_bot.download_media(ok, a)
await eor(
event,
f"Done, Now Reply Another Image/pdf if completed then use {hndlr}pdsend to merge nd send all as pdf",
)
else:
await eor(event, "`Reply to a Image/pdf only...`")
os.remove(ultt)
@ultroid_cmd(
pattern="pdsend ?(.*)",
)
async def sendpdf(event):
if not os.path.exists("pdf/scan.pdf"):
await eor(
event,
"first select pages by replying .pdsave of which u want to make multi page pdf file",
)
return
msg = event.pattern_match.group(1)
if msg:
ok = f"{msg}.pdf"
else:
ok = "My PDF File.pdf"
merger = PdfFileMerger()
for item in os.listdir("pdf/"):
if item.endswith("pdf"):
merger.append(f"pdf/{item}")
merger.write(ok)
await event.client.send_file(event.chat_id, ok, reply_to=event.reply_to_msg_id)
os.remove(ok)
shutil.rmtree("pdf/")
os.makedirs("pdf/")
HELP.update({f"{__name__.split('.')[1]}": f"{__doc__.format(i=Var.HNDLR)}"})