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  1. Home
  2. ›Tools
  3. ›Convert Images to PDF Online

Convert Images to PDF Online

Combine multiple images into a single PDF file for free. Drag to reorder pages. Supports JPG, PNG, WebP. No signup required.

Image to PDF

Combine multiple images into a single PDF document. Drag to reorder pages.

Drop images here

Upload images in the order you want them in the PDF

What This Tool Does

Combine any set of images into a single PDF document, with each image as one page. Drag-and-drop to reorder pages, choose page size (A4, US Letter, custom), set page orientation, and pick fit-to-page or fill-page sizing for each image. The PDF is built in your browser using pdf-lib so no images are ever uploaded. Output is searchable when the source images contain selectable text, otherwise it's a standard image-only PDF — useful for stitching scanned receipts and IDs, packaging photo albums, sending portfolios as a single deliverable, and converting screenshot sequences into sharable PDFs.

When to Use This Tool

Combine to PDF when the recipient expects a single multi-page document — scanned forms for an HR system, an itemized receipt bundle for an expense report, or a screenshot-driven walkthrough. PDF is the most universally readable document format on the planet, so it's a safe default. If the recipient asked for individual images instead, send them as a ZIP. If you need a slide-style document with text and headings, a real word processor or Google Docs export will produce smaller, searchable PDFs than the image-only version generated here.

How to Use

  1. 1

    Upload your images

    Drop any combination of JPG, PNG, WebP, or AVIF files. Each image becomes one page in the output PDF.

  2. 2

    Reorder pages

    Drag thumbnails to change page order. The visual order in the editor matches the final PDF order exactly.

  3. 3

    Pick page size and orientation

    Default is A4 portrait. Switch to US Letter, A3, A5, or custom dimensions. Choose Fit to Page (preserves aspect ratio with margins) or Fill Page (crops to fill).

  4. 4

    Generate and download

    Build the PDF in your browser. Save with a custom filename. Originals are not modified, and no images leave your device.

Privacy First — No Uploads

Your images are processed entirely in your browser. They are never uploaded to any server. Once you close the tab, all data is gone. No tracking, no storage, no cookies for your files.

Frequently Asked Questions

Can I reorder pages?

Yes. Drag image thumbnails into any order before generating the PDF.

What page sizes are supported?

A4, A3, A5, US Letter, US Legal, and a custom-dimension option in millimeters or inches.

Will the resulting PDF be searchable?

The resulting PDF is image-only by default. Text inside the source images is rendered as pixels, not selectable text. Use a dedicated OCR tool first if searchable PDF output is required.

Is there a maximum number of images?

No hard cap, but PDFs over 100 image pages can be slow to generate and very large. For huge batches, generate two or three smaller PDFs.

Does the PDF include any tracking or watermark?

No. theimgapp never adds watermarks or tracking to your output. The PDF metadata simply notes that it was created by theimgapp.

Pro Tips

  • For scanned receipts and documents, US Letter or A4 with 'Fit to Page' produces standard-looking output that prints correctly.
  • Compress your source images before combining if you intend to email the resulting PDF — image-heavy PDFs can quickly exceed 25 MB inbox limits.
  • Mixing portrait and landscape photos inside one PDF works, but consider splitting into two PDFs if the inconsistency matters (e.g. a portfolio).
  • If you need to preserve searchable text, scan with an OCR-enabled scanner first or run the document through OCR software, then combine the OCR'd PDFs separately.

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Learn More

  • Online Image to PDF Converter Guide