Dailiyo

Image to PDF

Combine multiple images into a single PDF, in the order you want — useful for receipts, ID scans and homework submissions.

Image to PDF

Image to PDF — inputs

Enter your values above and press Process file to see the result.

This tool runs entirely in your browser — no data is sent to our servers. If JavaScript is disabled, the fully interactive version will not run; enable JavaScript to compute results.

About this image to pdf

Sometimes the easiest way to send a stack of photos is as one PDF. Email attachments are tidier, recipients can scroll through pages instead of opening files one by one, and many bureaucratic processes specifically ask for PDF.

The tool accepts JPG, PNG and WEBP images. Each image becomes one PDF page sized to fit the image dimensions. The order is drag-and-drop — reorder the list before building the PDF, and the pages appear in that exact order.

For scanned documents specifically (receipts, paperwork, ID), photographs taken on a phone work well as long as the lighting is reasonable and the camera is held steady. Crop tightly to the document edges in your phone gallery first for the cleanest result.

How to use it

  1. Pick the images you want to combine.
  2. Reorder them with the up/down arrows.
  3. Click Build PDF.
  4. Download the combined PDF.

Tips & notes

  • For document scans, crop tightly to the document edges before adding the image. A tight crop reduces file size, produces a cleaner-looking page, and keeps the PDF readable if the recipient prints it.
  • Photographs straight from a phone are typically larger than needed. Compress them first if the resulting PDF is too big to email — most email systems reject attachments above 25 MB.
  • Order matters — pages appear in the order shown in the list. Drag or use the arrow buttons to rearrange before generating the PDF.
  • For invoice or receipt bundles, use consistent orientation across pages so the recipient can flip through without rotating.
  • If you plan to print the PDF, add a 5-10 mm white border to each image by cropping slightly wider than the document — modern printers can lose a few millimetres at the edge on cut-sheet paper.

Frequently asked questions

Is there a limit on the number of pages?

No hard limit — but the browser holds everything in memory. Tens of pages work fine; hundreds may slow down or run out of memory.

Does the PDF retain image quality?

Yes. Images are embedded at their original resolution. For final file size, compress the source images first.

Is the PDF generated in the browser?

Yes — using pdf-lib. Nothing is uploaded or processed on a server.

Can I mix portrait and landscape pages in the same PDF?

Yes. Each page in the output PDF takes its orientation from the source image aspect ratio, so a landscape scan and a portrait selfie end up as landscape and portrait pages respectively. No manual page-setup step is needed.

Does the tool run text OCR on the images?

No — the images are embedded as pictures, so the resulting PDF is not text-searchable. For a text-searchable PDF you need an OCR step (Google Drive or Adobe Acrobat both offer this after upload). This tool is for visual archiving, not for turning scans into editable documents.

What is the ideal source-image resolution for a clean printed page?

Around 200-300 DPI at final print size. For an A4 page that is about 1650-2450 pixels wide. Higher resolutions increase file size sharply with no visible quality gain on paper, so downsample very large phone photos before adding them to the PDF.

Image to PDF in the Image & File collection

The Image to PDF lives alongside Image Compressor, Image Resize, PNG to JPG Converter on the Image & File page. That landing page collects every image & file tool Dailiyo publishes, plus the editorial notes on formula sources, review cadence and how each result should (and should not) be interpreted. If a related image & file calculation isn't yet in the collection and you'd like to see it, drop a line via the contact page — the editorial team reviews every request and prioritises tools that come up most often in reader questions.

Last reviewed: by the Dailiyo editorial team, part of Xposure Soft Solution. Read our content review policy for details on how often we re-verify calculators.