Is Images to PDF private?

Everything runs locally in your browser. Your files are never uploaded to StackPDF servers.

Do I need an account to use Images to PDF?

No. StackPDF is free to use without signing up or creating an account.

Does Images to PDF work offline?

After the page and libraries load, processing happens on your device. A connection is only needed to load the app the first time.

How many images can I convert to one PDF?

As many as your device can handle within browser safety limits. There is no free-tier image-count paywall — multi-photo PDFs are assembled locally.

Which image formats are supported?

JPG, PNG, and WebP. HEIC, AVIF, or GIF? Convert first in [StackImage Convert](https://stackimage.stacktools.studio/convert-image), then come back here.

Do photos leave my device?

No. Images are assembled into a PDF in the browser. Ideal for IDs, receipts, and personal photos you do not want on a cloud converter.

Can I make a multi-page PDF from phone pictures?

Yes. Drop camera photos, rearrange pages, and download one PDF — no app install and no account required.

What is the difference between fit and fill?

Fit keeps the whole image visible on the page (letterboxing if aspect ratios differ). Fill covers the page and may crop edges — useful when you want edge-to-edge pages.

Will the PDF be huge?

Each page embeds image data, so high-resolution camera files add up. Shrink the photos first in [StackImage Compress](https://stackimage.stacktools.studio/compress-image), or run Compress PDF on the finished document.

Images to PDF

Combine JPG, PNG, and WebP images into one PDF.

How it works

1Drop one or more JPG, PNG, or WebP images into the workspace.
2Drag cards to set the page order.
3Choose page size (for example A4) and fit or fill.
4Generate the PDF and watch progress on large batches.
5Preview pages if needed, then download the multi-page PDF.

About

Convert images to PDF without uploading. Reorder photos, choose page size and fit, and download a clean multi-page PDF — all in your browser.

Drop JPG, PNG, or WebP files, drag them into the right sequence, and pick how each image sits on the page (fit vs fill) plus a paper size such as A4. One image becomes one page, so multi-photo packets stay easy to navigate.

Ideal for IDs, receipts, whiteboard shots, and phone camera captures you do not want on a cloud “JPG to PDF” site.

Common use cases

Combine receipt photos into one expense PDF
Make a multi-page ID and document packet for a form upload
Turn whiteboard or chalkboard photos into a shareable PDF
Assemble product or inventory photos for a client email
Create a simple photo report without desktop publishing software

Photos to PDF without a cloud upload

Cloud image converters are convenient until the folder is passports, kids’ documents, or itemized receipts. StackPDF never needs those pixels on a server: the PDF is built in the tab and saved to your downloads.

Reorder before export so the reader sees a logical story — front of ID, back of ID, then supporting shots — without renaming files on disk first.

Page size, fit, and quality

Paper size controls how the PDF is framed for print and many portals. Fit vs fill decides whether the full photo stays visible or the page is covered edge to edge.

Source resolution largely drives output sharpness. Starting from a clear capture beats any later upscale. If you must enlarge a photo first, use StackImage Upscale on-device, then come back.

When a phone app or cloud tool is enough

Built-in share sheets and vendor apps are fine for casual social photos. To crop, rotate, or deskew privately first, use StackImage Crop or Rotate — then assemble the PDF here.

If you need OCR on the finished scan packet, convert images to PDF here, then open OCR PDF — still local.