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Documents • 5 min read • Updated August 2026

How to Convert Multiple Images to PDF

Combining multiple photos or screenshots into a single PDF document is one of the most common file conversion tasks. This guide explains how to do it securely and quickly in your browser, with control over page order, page size, and orientation.

Whether you are packaging multiple scanned documents for a visa application, bundling a multi-page certificate, compiling a photo gallery for review, or creating a multi-page report from screenshots — combining images into a PDF is a fundamental document workflow. SudoGrep's Image to PDF converter handles this entirely in your browser, with no file upload to any server.

Step-by-Step: Compile Multiple Images into a PDF

  • Step 1: Open SudoGrep's Image to PDF converter.
  • Step 2: Click "Add Images" or drag and drop all your image files (JPEG, PNG, WebP) into the upload area. You can select multiple files at once using Ctrl+Click or Shift+Click in the file browser.
  • Step 3: Review the image thumbnails. Drag and drop them to set the correct page order. The first image in the list will be Page 1 of the PDF.
  • Step 4: Choose your page size: A4 for international standard, Letter for US documents.
  • Step 5: Choose orientation: Portrait for taller-than-wide images, Landscape for wider-than-tall images.
  • Step 6: Click Generate PDF. The compiled document will be downloaded to your device immediately.

Privacy First: All image decoding, page compilation, and PDF generation run entirely inside your browser. No images or documents are uploaded to SudoGrep servers at any point.

Mixing JPEG and PNG in the Same PDF

You can freely mix JPEG, PNG, and WebP images in the same PDF compilation. Each image is decoded individually by the browser's Canvas API and drawn onto its respective PDF page. PNG transparency is handled by the PDF page background showing through transparent regions (appearing as white in most PDF viewers).

Page Ordering Guidance

Page order is the most critical step when compiling multi-page PDFs from images. Common ordering requirements:

  • Scanned documents: Order pages in the sequence they appear in the original document (Page 1, Page 2, Page 3...).
  • Photo albums: Order by date or narrative sequence.
  • Application documents: Follow the portal's specified order (e.g., cover letter, ID proof, marksheet, certificate).

In SudoGrep's tool, you can drag thumbnails up or down to reorder pages before generating the PDF.

Page Size and Orientation for Document Submissions

For official document submissions, use A4 portrait by default unless the receiving system specifies otherwise. For wide images or landscape photos, switch to landscape orientation to avoid the image being heavily cropped or shrunk.

Convert Your Images to PDF Now

Drag multiple images, reorder pages, choose A4 or Letter, and download in seconds. No upload required.

Open Image to PDF →

Frequently Asked Questions

Can I combine JPG and PNG images into the same PDF?
Yes. SudoGrep's Image to PDF tool accepts JPEG, PNG, and WebP images simultaneously. You can mix formats freely, and each image will be placed on its own page in the compiled PDF.
How do I change the page order in the PDF?
After uploading images, you can drag and drop the image thumbnails to reorder them. The top-to-bottom order in the list determines the page sequence in the downloaded PDF.
Is there a limit to how many images I can add?
There is no hard limit — you can add as many images as your browser can handle in memory. For very large batches, compile in smaller groups if you encounter performance issues.