No upload, 100% local, no account

Images → PDF

Drop your images, reorder them by dragging, and download a single PDF. Everything runs in your browser.

How Images to PDF works

Image to PDF combines one or more images in JPG, PNG or WebP format into a single PDF file, placing each image on its own page. The images are embedded by pdf-lib directly in your browser, and the resulting PDF is written to your downloads folder without any file being sent to a server. You can reorder the images before conversion by dragging their thumbnails into the sequence you want.

Each image is fitted to a page sized to match it by default, keeping the full resolution and avoiding any scaling artefact. You can also choose a fixed page size such as A4 or Letter if you want uniform page dimensions in the output PDF. Large images are embedded as-is, so the output file size is roughly proportional to the total size of the source images. If you need a smaller file, run the PDF compress tool after conversion.

Written by Bastien Sulyan

How to use Images to PDF, step by step

  1. Drop one or more images (JPG, PNG or WebP) onto the upload area.
  2. Drag the image thumbnails into the order you want them to appear in the PDF.
  3. Choose a fixed page size if you want uniform dimensions, or leave the setting on automatic to fit each image to its page.
  4. Click convert and download the PDF.

Common use cases

  • You photographed several pages of a paper document with your phone and want to combine the photos into a single PDF to share.
  • A set of product photos needs to be sent as a single attachment; combine them into a PDF instead of a ZIP of individual images.
  • Scanned receipts saved as individual JPEGs need to be bundled into one PDF for an expense report.
  • A designer exported each page of a mockup as a PNG; assemble them into a PDF for client review.

Frequently asked questions

Does the tool compress or alter my images during conversion?

By default the images are embedded into the PDF at their original quality. pdf-lib encodes them using the JPEG or PNG compression already present in the source file. No additional quality reduction is applied during the conversion step itself. If you need a smaller output, use the PDF compress tool on the result.

How many images can I add at once?

There is no hard limit in the tool, but adding very large numbers of high-resolution images may slow the conversion or strain browser memory. For bulk conversions of many large images, processing in smaller batches and then merging the resulting PDFs is a practical approach.

Can I mix JPG, PNG and WebP files in the same PDF?

Yes. The tool accepts all three formats in a single batch. Each image is handled according to its own format; you do not need to convert them all to the same type first. HEIC and HEIF, the format an iPhone shoots by default, are not accepted here: convert those to JPG with the image converter first.

Do my image files leave my computer at any point?

No. pdf-lib reads each image file from your local storage into browser memory and encodes it into the PDF structure there. The assembled PDF is then written to your downloads folder directly from memory. None of your images travel over the network.

What page size will the output PDF use?

With the automatic setting, each page is sized to match the pixel dimensions of its image, so a landscape photo produces a landscape page and a portrait photo produces a portrait page. If you choose a fixed size such as A4, all pages use that size and the image is scaled to fit within it while preserving its aspect ratio.

Can I add images to an existing PDF instead of creating a new one?

This tool creates a new PDF from images only. To insert image pages into an existing PDF, create the image PDF here and then use the PDF merge tool to combine it with your existing document in the right order.

Does the generated PDF carry a watermark?

No. Each page contains only the embedded image at the size you chose, with no watermark, logo or Sunasty branding added anywhere.

Can I turn phone photos into a PDF directly from my phone?

Yes. pdf-lib runs as plain JavaScript, so the whole flow, dropping images, reordering them and downloading the PDF, works the same on a mobile browser as on a desktop one.