Python实现将单张或多张图片转PDF

pip install Spire.PDF

from spire.pdf.common import *
from spire.pdf import *

# 创建 PdfDocument 对象
pdf = PdfDocument()

# 设置页面边距为 0
pdf.PageSettings.SetMargins(0.0)

# 载入图片
image = PdfImage.FromFile("Sample.jpg")

# 获取图片宽高
width = image.PhysicalDimension.Width
height = image.PhysicalDimension.Height

# 创建与图片同大小的页面
page = pdf.Pages.Add(SizeF(width, height))

# 绘制图片
page.Canvas.DrawImage(image, 0.0, 0.0, width, height)

# 保存 PDF
pdf.SaveToFile("单图.pdf")
pdf.Dispose()

from spire.pdf.common import *
from spire.pdf import *
import os

# 创建 PdfDocument 对象
doc = PdfDocument()
doc.PageSettings.SetMargins(0.0)

# 图片所在文件夹
path = '图片/'
files = os.listdir(path)

for root, dirs, files in os.walk(path):
    for file in files:
        # 载入图片
        image = PdfImage.FromFile(os.path.join(root, file))
        width = image.PhysicalDimension.Width
        height = image.PhysicalDimension.Height
        
        # 添加页面
        page = doc.Pages.Add(SizeF(width, height))
        
        # 绘制图片
        page.Canvas.DrawImage(image, 0.0, 0.0, width, height)

# 保存 PDF
doc.SaveToFile('output/多图.pdf')
doc.Dispose()

from spire.pdf.common import *
from spire.pdf import *

pdf = PdfDocument()
pdf.PageSettings.SetMargins(5.0)  # 设置边距
pdf.PageSettings.Size = PdfPageSize.A4()  # 设置页面为 A4

# 添加新页面
page = pdf.Pages.Add()

# 载入图片
image = PdfImage.FromFile("Sample.jpg")
width = image.PhysicalDimension.Width
height = image.PhysicalDimension.Height

# 计算居中位置
x = (page.GetClientSize().Width - width) / 2
y = (page.GetClientSize().Height - height) / 2

# 绘制图片
page.Canvas.DrawImage(image, x, y, width, height)

pdf.SaveToFile("自定义.pdf")
pdf.Dispose()

from spire.pdf.common import *
from spire.pdf import *

# 创建 PdfDocument 对象
document = PdfDocument()

# 加载 SVG 文件
document.LoadFromSvg("SVG.svg")

# 保存为 PDF 文件
document.SaveToFile("output/SVG.pdf", FileFormat.PDF)
document.Dispose()

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

# 创建PDF文档并移除页边距
pdf = PdfDocument()
pdf.PageSettings.SetMargins(0.0)

# 加载TIFF图片，将每一帧转换为PNG并添加到PDF
tiff_image = Image.open("example.tiff")
for i in range(tiff_image.n_frames):
    tiff_image.seek(i)
    frame = tiff_image.copy()
    frame.save(f"temp_{i}.png")
    image = PdfImage.FromFile(f"temp_{i}.png")
    page = pdf.Pages.Add(SizeF(image.PhysicalDimension.Width, image.PhysicalDimension.Height))
    page.Canvas.DrawImage(image, 0.0, 0.0)

# 保存文档
pdf.SaveToFile("output/TIFF转PDF.pdf")
pdf.Dispose()

from spire.pdf import PdfDocument, PdfImage
from spire.pdf.common import SizeF
import os

# 创建 PDF
pdf = PdfDocument()
pdf.PageSettings.SetMargins(0.0)

# 图片所在文件夹
folder_path = "MeetingPhotos/"
images = sorted(os.listdir(folder_path))  # 按文件名排序

for img_file in images:
    # 仅处理常见图片格式
    if img_file.lower().endswith((".jpg", ".jpeg", ".png")):
        image_path = os.path.join(folder_path, img_file)
        img = PdfImage.FromFile(image_path)
        
        # 添加与图片同尺寸页面
        page = pdf.Pages.Add(SizeF(img.PhysicalDimension.Width, img.PhysicalDimension.Height))
        page.Canvas.DrawImage(img, 0.0, 0.0, img.PhysicalDimension.Width, img.PhysicalDimension.Height)

# 保存 PDF
pdf.SaveToFile("output/会议照片.pdf")
pdf.Dispose()

page_width, page_height = 595.0, 842.0  # A4 尺寸，单位为点

for img_file in images:
    img = PdfImage.FromFile(os.path.join(folder_path, img_file))

    scale = min(page_width / img.PhysicalDimension.Width, page_height / img.PhysicalDimension.Height)

    width = img.PhysicalDimension.Width * scale
    height = img.PhysicalDimension.Height * scale

    page = pdf.Pages.Add(SizeF(page_width, page_height))

    x = (page_width - width) / 2
    y = (page_height - height) / 2
    page.Canvas.DrawImage(img, x, y, width, height)