pip install Spire.Pdf
pip install Pillow

from spire.pdf.common import *
from spire.pdf import *
from PIL import Image
from io import BytesIO

def convert_pdf_to_tiff(input_path, output_path):
    # 初始化PDF文檔對象
    pdf_manager = PdfDocument()

    try:
        # 加載PDF文件
        pdf_manager.LoadFromFile(input_path)

        # 存儲每頁圖像的列表
        collected_images = []

        # 遍歷PDF中的每一頁
        for i in range(pdf_manager.Pages.Count):
            # 渲染頁面為圖像流
            with pdf_manager.SaveAsImage(i) as image_stream:
                # 將圖像流轉換為PIL能理解的格式
                pil_img = Image.open(BytesIO(image_stream.ToArray()))
                collected_images.append(pil_img)

        # 如果成功提取了圖像
        if collected_images:
            # save_all=True是創(chuàng)建多頁TIFF的關鍵
            # append_images從第二頁開始添加
            collected_images[0].save(
                output_path, 
                save_all=True, 
                append_images=collected_images[1:], 
                compression="tiff_lzw"  # LZW無損壓縮，廣泛支持
            )
            print(f"成功：{output_path}已生成，共包含{len(collected_images)}頁。")

    except Exception as e:
        print(f"轉換過程中發(fā)生錯誤：{e}")
    finally:
        # 釋放資源以節(jié)省內存
        pdf_manager.Dispose()

# 執(zhí)行函數
convert_pdf_to_tiff("Annual_Internal_Audit.pdf", "Audit_Archive_Fixed.tiff")

from spire.pdf.common import *
from spire.pdf import *
from PIL import Image
import io
import os

def convert_tiff_to_pdf(input_tiff, output_pdf_path):
    # 創(chuàng)建一個新的PDF文檔
    new_pdf = PdfDocument()

    # 設置頁面邊距為零，確保圖像填充整個頁面
    new_pdf.PageSettings.SetMargins(0.0)

    try:
        # 打開TIFF文件
        with Image.open(input_tiff) as multi_frame_tiff:
            # 遍歷TIFF中的每一幀
            for i in range(multi_frame_tiff.n_frames):
                multi_frame_tiff.seek(i)
                
                # 將每一幀保存到一個臨時緩沖區(qū)
                frame_buffer = io.BytesIO()
                multi_frame_tiff.save(frame_buffer, format="PNG")
                frame_buffer.seek(0)
                
                # 將緩沖區(qū)中的圖像加載到PDF文檔中
                pdf_img = PdfImage.FromStream(frame_buffer)

                # 獲取圖像的寬高
                img_width = pdf_img.PhysicalDimension.Width
                img_height = pdf_img.PhysicalDimension.Height

                # 創(chuàng)建一個與圖像尺寸相同的PDF頁面
                pdf_page = new_pdf.Pages.Add(SizeF(img_width, img_height))

                # 將圖像繪制到PDF頁面的畫布上
                pdf_page.Canvas.DrawImage(pdf_img, 0.0, 0.0, img_width, img_height)

        # 保存PDF文件
        new_pdf.SaveToFile(output_pdf_path, FileFormat.PDF)
        print(f"PDF文件已成功創(chuàng)建：{output_pdf_path}")

    except Exception as e:
        print(f"處理TIFF時發(fā)生錯誤：{e}")
    finally:
        new_pdf.Dispose()

# 執(zhí)行函數
convert_tiff_to_pdf("Legacy_Records_Vol_1.tiff", "Digital_Library_V1.pdf")

# 動態(tài)添加水印的代碼
font = PdfTrueTypeFont("Arial", 20.0, PdfFontStyle.Bold, True)
brush = PdfBrushes.get_Red()
pdf_page.Canvas.SetTransparency(0.5)
pdf_page.Canvas.DrawString("CONFIDENTIAL - INTERNAL ONLY", font, brush, 50, 50)

pip install pdf2image pillow

from pdf2image import convert_from_path
from PIL import Image
import os
def pdf_to_tiff(pdf_path, tiff_path, dpi=200):
    """
    將PDF轉換為多頁TIFF
    """
    # 將PDF每一頁轉換為PIL圖像列表
    # Windows用戶需要添加 poppler_path 參數，例如：poppler_path=r'C:\path\to\poppler\bin'
    images = convert_from_path(pdf_path, dpi=dpi)
    if not images:
        print("PDF未產生任何圖像，請檢查文件。")
        return
    # 將第一張圖像保存為TIFF，并附加剩余圖像
    images[0].save(
        tiff_path,
        save_all=True,
        append_images=images[1:],
        compression="tiff_lzw"  # 使用 LZW 無損壓縮，可節(jié)省空間
    )
    print(f"轉換成功，文件已保存至: {tiff_path}")
# 使用示例
pdf_to_tiff("輸入.pdf", "輸出.tiff", dpi=300)

pip install PyMuPDF pillow

import fitz  # PyMuPDF
from PIL import Image
import io
def pdf_to_tiff_fitz(pdf_path, tiff_path, dpi=200):
    # 1. 打開PDF文檔
    doc = fitz.open(pdf_path)
    images = []
    # 2. 遍歷每一頁，渲染為PNG格式的圖像字節(jié)流
    for page_num in range(len(doc)):
        page = doc[page_num]
        # 設置縮放矩陣：dpi/72 為標準轉換因子
        zoom = dpi / 72
        mat = fitz.Matrix(zoom, zoom)
        pix = page.get_pixmap(matrix=mat)  # 渲染為像素圖
        img_bytes = pix.tobytes("png")     # 轉為PNG字節(jié)流
        img = Image.open(io.BytesIO(img_bytes))
        images.append(img)
    doc.close()
    # 3. 保存為多頁TIFF
    if images:
        images[0].save(
            tiff_path,
            save_all=True,
            append_images=images[1:],
            compression="tiff_lzw"
        )
        print(f"轉換成功，文件已保存至: {tiff_path}")
# 使用示例
pdf_to_tiff_fitz("輸入.pdf", "輸出.tiff", dpi=300)

pip install imageconvert

from imageconvert import ImageConvert
# 調用庫內置方法，一步完成轉換
ImageConvert.pdf_to_images("輸入.pdf", "輸出文件夾", dpi=300)

from spire.pdf import PdfDocument
from PIL import Image
from io import BytesIO
doc = PdfDocument()
doc.LoadFromFile("輸入.pdf")
images = []
for i in range(doc.Pages.Count):
    with doc.SaveAsImage(i) as img_data:
        img = Image.open(BytesIO(img_data.ToArray()))
        images.append(img)
if images:
    images[0].save("輸出.tiff", save_all=True, append_images=images[1:])
doc.Dispose()

pip install pillow

from PIL import Image
def tiff_to_pdf(tiff_path, pdf_path):
    # 打開一個多頁TIFF文件
    tiff_image = Image.open(tiff_path)
    images = []
    # 遍歷每一幀，將圖像轉換為RGB模式（PDF/A格式要求）
    for i in range(getattr(tiff_image, 'n_frames', 1)):
        tiff_image.seek(i)
        # 轉換為RGB模式，避免透明度等兼容性問題
        rgb_image = tiff_image.convert("RGB")
        images.append(rgb_image)
    if images:
        # 將第一頁保存為PDF，并附加其余頁面
        images[0].save(pdf_path, save_all=True, append_images=images[1:])
        print(f"轉換成功，PDF已保存至: {pdf_path}")
# 使用示例
tiff_to_pdf("輸入.tiff", "輸出.pdf")

pip install img2pdf

import img2pdf
def tiff_to_pdf_img2pdf(tiff_path, pdf_path):
    # 直接讀取文件并將TIFF數據轉換為PDF
    with open(pdf_path, "wb") as f:
        f.write(img2pdf.convert(tiff_path))
    print(f"轉換成功，PDF已保存至: {pdf_path}")
# 使用示例
tiff_to_pdf_img2pdf("輸入.tiff", "輸出.pdf")