iToolsPro

Image to PDF

Combine multiple images into a single PDF - auto / A4 / Letter page size, portrait / landscape, adjustable margins and quality, all local.

Page
Orientation
Margin pt
Fit
Quality 92%
Images 0
Click or drag multiple images here PNG / JPG / WebP, multi-select, one page per image
Add images to reorder - each becomes a PDF page
PDF Preview
Add images to generate a PDF preview
Pages 0 File -
Merge · PDF · Local

Image to PDF,merge · local-first

Combine images into a single PDF - A4 / Letter / auto page size, adjustable orientation, margins and quality.

100% local · nothing uploaded

Core features

Merge images
Combine any number of images into one PDF, drag to reorder.
Merge many images into one PDF.
Flexible layout
A4 / Letter / image size, portrait / landscape, margins and fit.
A4 / Letter / auto, portrait / landscape, margins, fit.
Local-first
Everything runs in the browser - images never leave your device.
Runs fully in the browser.

Use cases

📄 Reports 📇 Scanned docs 📤 Sharing 🖨 Printing 🗂 Archiving

图片转 PDF 功能说明与使用指南Image to PDF Guide

了解图片转 PDF 的功能、如何转换,以及常见问题解答。Merge multiple images into a single PDF with adjustable page size, orientation and margins.

功能说明What It Does

图片转 PDF 可把多张图片按顺序合成为一个 PDF 文件,每张图片对应一页,支持拖拽排序。

Combine multiple images into a single PDF, one page per image, with drag-to-reorder.

支持 A4 / Letter / 图片原尺寸页面,可调纵向 / 横向、边距、适应方式与图片质量。

A4 / Letter / auto page size, portrait / landscape, adjustable margins, fit and quality.

适合把截图、扫描件、文档图片整理为 PDF 归档或分享。

Great for turning screenshots, scans and document images into a PDF to archive or share.

无需安装软件,浏览器内即可生成 PDF。

No software install — generate a PDF right in the browser.

适用人群Who Should Use

需要把图片整理成 PDF 的办公用户。

Office users who need to organize images into a PDF.

学生、教师整理扫描件与资料。

Students and teachers organizing scans and materials.

技术原理How It Works

使用 PDF 生成库(如 jsPDF)把每张图片按页尺寸写入 PDF。

Uses a PDF generation library (such as jsPDF) to write each image to a page-sized PDF.

全部在浏览器本地完成。

Everything runs locally in the browser.

安全与隐私Privacy & Security

图片在本机生成 PDF,不上传。

Images are turned into a PDF on-device and never uploaded.

使用步骤How to Use

  1. 批量上传图片并按顺序排序。Upload images and order them.
  2. 选择页面尺寸与方向。Choose page size and orientation.
  3. 调整边距、适应方式与质量。Adjust margins, fit and quality.
  4. 点击「下载 PDF」保存。Click download to save the PDF.

常见问题FAQ

Q1. 一页可以放多张图吗?Q1. Can one page hold multiple images?

默认每张图片生成一页,如需一页多图可先用图片拼接工具合成。One page per image by default; use the stitcher for multiple per page.

Q2. 支持哪些图片格式?Q2. Which image formats are supported?

支持 PNG、JPG、WebP 等常见格式。PNG, JPG, WebP and more.

Q3. 文件会上传吗?Q3. Will files be uploaded?

不会,PDF 生成全程在浏览器本地完成。No, PDF generation runs entirely in the browser.