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image-to-pdf

An image-to-PDF converter takes one or more images (JPG, PNG, WebP, GIF, BMP) and assembles them into a single PDF file with one image per page. The ZTools Image to PDF tool offers full control: drag to reorder, rotate per page, choose page size (A4, Letter, Legal, custom), orientation (portrait/landscape), margin, and image fit (contain, cover, or original size). Built on pdf-lib and runs entirely in the browser — no upload, no watermark, no file count limit beyond browser memory.

Use cases​

Submitting scanned documents (passport, IDs, certificates) as a single PDF​

Most government forms and visa portals require all supporting documents combined into one PDF. Drop the photos of passport, ID front/back, and certificates; reorder; export. One file, ready for upload.

Bundling phone photos of a paper document into a sharable file​

You photograph a 4-page contract with your phone. Combine the four images into a single PDF, send via email — looks like a proper scan, faster than running CamScanner end-to-end.

Creating a portfolio PDF from individual JPGs​

Designers and photographers often need a PDF deliverable. Drop your portfolio images, set Letter landscape, choose "contain" fit, and export — ready to email or print.

Compiling receipts from multiple photos into one expense PDF​

Snap each receipt as a photo, combine into a single PDF, upload to your expense system. One file per trip beats 12 separate attachments.

How it works​

  1. Drag-drop or select images — JPG, PNG, WebP, GIF, BMP supported. Add more later — the file list is editable until export.
  2. Reorder by drag-drop — Each image becomes a page; rearrange the list to control the page order.
  3. Choose page settings — Page size (A4, Letter, Legal, A3, custom mm/inches). Orientation (portrait/landscape/auto-per-image). Margin (0 / small / medium / custom). Image fit (contain — keep ratio, fit inside; cover — fill, may crop; original — no scaling).
  4. Per-image rotation if needed — Rotate any image 90°/180°/270° before composition — useful for sideways phone shots.
  5. Click Export and download — pdf-lib builds the PDF in browser memory and offers download. No server roundtrip.

Examples​

Input: 4 JPG scans of a contract → A4 portrait, "contain" fit, 10mm margin

Output: Single 4-page A4 PDF, each image scaled to fit the page with margin

Input: 20 portfolio JPGs at varying ratios → Letter landscape, "contain" fit

Output: 20-page PDF, each image centered with white borders to fill the page

Frequently asked questions​

Is there a limit on number of images?

Practical limit is browser memory. 50-100 images compose comfortably; mobile devices may struggle above 50 large images.

Will the output PDF be huge?

PDF size ≈ sum of input image sizes (no extra compression by default). For smaller output, compress images first with our Image Compressor, or run the result through PDF Compressor.

What's the difference between contain, cover, and original fit modes?

Contain: scale image to fit inside the page, preserving aspect ratio (may add white borders). Cover: scale to fill the page, preserving aspect ratio (may crop). Original: no scaling, image placed at natural size (may overflow).

Will my images be uploaded?

No. Composition runs entirely in your browser. Disconnect from the internet after page load and the tool still works.

Are EXIF metadata (location, camera info) preserved?

No — the PDF embeds the image pixel data only, not the EXIF. This is a privacy feature: PDFs of scanned receipts won't accidentally leak GPS coordinates.

Can I add page numbers or headers?

Not directly — for that, use a dedicated PDF editor after export. The tool focuses on the image-to-PDF assembly step.

Tips​

  • Set orientation to "auto-per-image" for mixed portrait/landscape photo sets.
  • For document scans, choose A4 portrait with a 10-15mm margin — looks like a proper scan.
  • For portfolios, use Letter landscape with "contain" fit for maximum image area.
  • If the output is too large, run Image Compressor on inputs first.

Try it now​

The full image-to-pdf runs in your browser at https://ztools.zaions.com/image-to-pdf — no signup, no upload, no data leaves your device.

Open the tool ↗

Last updated: 2026-05-05 · Author: Ahsan Mahmood · Edit this page on GitHub