You've got a stack of images — phone photos of a signed contract, screenshots of a form, scanned receipts, certificate photos — and you need them in a single PDF. Maybe you're emailing them to someone who expects one document instead of twelve attachments. Maybe a portal requires PDF format. Maybe you just want a tidy archive.
This guide walks through how to combine images into a PDF entirely in your browser, with full control over page order, rotation, page size, and orientation — no software to install, no files uploaded anywhere.
Why combine images into a PDF?
PDFs are the universal document format. They look the same on every device, preserve layout perfectly, and are accepted by virtually every portal, email client, and document management system. When you need to share multiple images as a single file, PDF is almost always the right container.
Common scenarios where you'd want to convert images to PDF:
- Submitting scanned documents — contracts, signed forms, identity documents, bank statements photographed with your phone.
- Combining receipts — expense reports, warranty claims, insurance documentation.
- Creating portfolios — design work, photography collections, artwork samples.
- Archiving screenshots — bug reports, research notes, chat logs.
- Email attachments — one PDF is cleaner than a dozen image files.
How to create a PDF from images in your browser
ImagePal's Image to PDF tool runs entirely in your browser. Your images never leave your device — the PDF is assembled locally using pdf-lib, a client-side PDF generation library. Here's how:
- Open ImagePal's Image to PDF tool.
- Drag your images into the upload area, or click to browse. You can add JPEG, PNG, WebP, AVIF, GIF, BMP, or TIFF files.
- Reorder pages by dragging images up and down in the list. Each image becomes one page.
- Rotate any image by clicking the rotate button — it cycles through 0°, 90°, 180°, and 270°.
- Choose your page size (A4, US Letter, US Legal, or Fit to Image) and orientation (Portrait or Landscape).
- Click 'Create PDF.' The document is generated instantly.
- Download your PDF.
Choosing the right page size
The page size setting controls how your images are placed in the PDF:
- A4 (210×297 mm) — the international standard. Best for documents that will be printed or viewed in Europe, Asia, and most of the world.
- US Letter (8.5×11 in) — the North American standard. Use this for documents destined for US or Canadian recipients.
- US Legal (8.5×14 in) — for legal documents in the US and Canada. Taller than Letter.
- Fit to Image — the page matches the exact dimensions of each image. No margins, no scaling. Best for photos, artwork, or when you want pixel-perfect output.
For fixed page sizes (A4, Letter, Legal), images are automatically scaled to fit within the page with a small margin, centered both horizontally and vertically. The aspect ratio is always preserved — images are never stretched or distorted.
Portrait vs landscape
The orientation setting applies to fixed page sizes only (it's ignored when using 'Fit to Image'). Portrait means the page is taller than it is wide; landscape means it's wider than it is tall.
Choose based on how your images are oriented. If you have a mix, pick the orientation that matches the majority — individual images that don't match will be scaled to fit and centered. You can also rotate individual images to make them fit the chosen orientation better.
Working with phone photos and scans
Phone cameras are the most common source of images that need to become PDFs. A few tips for the best results:
- Check rotation before converting — phone photos sometimes have incorrect EXIF orientation. Use the rotate button to fix any images that appear sideways.
- Crop before uploading — if your photo has a lot of background (desk surface, your hand holding the document), crop it first for a cleaner PDF page.
- Use A4 or Letter for documents — if the images are photos of standard paper documents, using a matching page size gives the most natural result.
- Consider compressing first — phone photos are often 3–5 MB each. If the final PDF needs to be under a size limit (for email or upload), run the images through ImagePal's compressor before creating the PDF.
Privacy: why browser-based matters
Most online 'image to PDF' tools upload your files to a remote server. The server assembles the PDF and sends it back. This means your images — which might include contracts, IDs, medical documents, or financial records — pass through someone else's infrastructure.
With ImagePal, the PDF is assembled entirely in your browser using pdf-lib. Your images are read from your local file system, drawn into a PDF document in memory, and the result is saved directly to your device. Zero network traffic for your files. You can verify this by checking DevTools → Network while creating a PDF.
Common use cases
Submitting signed contracts
You printed a contract, signed it, and photographed each page with your phone. Drop all the photos into ImagePal, reorder if needed, set the page size to A4 or Letter, and generate a single PDF ready to email back.
Expense reports and receipts
Photograph each receipt, upload them all at once, arrange in date order, and create a single PDF. Much cleaner than attaching 15 separate images to an expense report.
Design and photography portfolios
Use 'Fit to Image' page size and landscape orientation for a portfolio that showcases each piece at its native resolution. The resulting PDF is ready to share or print.
The bottom line
Combining images into a PDF should be simple: drop files, set the order, click a button. No software installation, no account creation, no uploading sensitive documents to a server you don't control. That's exactly what browser-based PDF creation gives you.