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Image to PDF Converter

Short answer: To combine images into one PDF, add the images, arrange them in order and download the PDF. QuickMerge builds the document in your browser without uploading the source images.

Convert JPG, PNG, and other images to high-quality PDF format. All processing happens locally in your browser.

How do I combine several images into one PDF?

Drag & drop images here

or click to browse (JPG, PNG, GIF, BMP, WebP)

Page Layout

Page Size

Image Order

Target PDF Size

With a target set, the photos are re-encoded as JPEG at decreasing quality — and at reduced dimensions if quality alone is not enough — and the whole PDF is rebuilt and measured each time, stopping at the first version under your number. Transparency is lost when a target is set, because JPEG has none.

Turn a Stack of Photos and Scans into One Tidy PDF

Loose images are awkward to send and easy to lose track of. A landlord wants four photos of a leaky tap in one attachment, an accountant wants every receipt for the month in a single file, and a tutor wants ten phone snapshots of a marked-up worksheet bundled in reading order. This tool solves that by stitching your images into one PDF, with each picture placed on its own page in the sequence you choose. It runs entirely in your browser using the jsPDF library, so the photos you drop in — whether they are private receipts, ID scans, or family pictures — are read straight from your device and assembled locally. Nothing is uploaded, there is no sign-up, and the finished PDF downloads the moment it is built.

You can add up to 20 images at a time, with each file up to 20 MB, and the converter accepts the formats people actually have on their phones and computers: JPG, PNG, GIF, BMP, and WebP. Before you convert, every image appears as a thumbnail so you can confirm you grabbed the right pictures and remove any you did not mean to include. Three simple controls — page layout, page size, and image order — let you shape how the final document looks without wrestling with a full design program.

Step-by-Step: Building Your PDF

  1. Add your images. Drag and drop them onto the upload area or click to browse. You can select several at once, and you can keep adding more until you reach the 20-image limit.
  2. Check the thumbnails. Each image shows up in a preview grid with its file size. Use the small red × button on any thumbnail to drop an image you do not want.
  3. Choose a page layout. "One image per page" places each picture on its own page at a sensible size; "Fit images to page" scales each image to fill the page within the margins.
  4. Pick a page size. Select A4, US Letter, or Legal depending on where the document will be printed or filed.
  5. Set the image order. Keep the order you uploaded in, sort alphabetically by filename (A–Z), or reverse the sequence.
  6. Click "Convert to PDF." The file is built in your browser and saved as images-to-pdf.pdf straight to your downloads folder.

Getting the Page Order Right

Order matters more than people expect, because a PDF is read top to bottom and page one sets the tone. The fastest way to control sequence is to name your files before you upload — 01-cover.jpg, 02-page.jpg, 03-signature.jpg — and then choose the Alphabetical (A–Z) sort so the document assembles itself in the order you intended. If your camera already saved the shots in the right sequence, leave the setting on Upload order and they go in exactly as you added them. The Reverse order option is handy when a scanner or phone saved a multi-page document back to front, which happens often with automatic document feeders.

Choosing Layout and Page Size

The two layout modes solve different problems. One image per page keeps each picture close to its natural proportions and is the right pick for a photo album, a portfolio, or a set of inspection shots where the subject should not be stretched. Fit images to page scales each picture up to the page edges within a small margin, which looks cleaner for full-page scans of paperwork, contracts, and forms where you want the document to dominate the page. Whichever mode you pick, every image is centered, and an image larger than the page is automatically scaled down so nothing is cropped off. For page size, A4 is the standard for most of the world, US Letter suits North American printing, and Legal gives extra height for long forms, tables, or contracts.

Real-World Uses

  • Expense and receipt reports: Photograph a month of receipts and combine them into one PDF to attach to an expense claim instead of sending a dozen separate images.
  • Submitting scanned documents: Turn phone snapshots of a signed lease, a permission slip, or a multi-page form into a single file a portal will accept.
  • Photo portfolios and proofs: Bundle product shots, artwork, or property listing photos into one shareable document with a predictable page order.
  • Homework and study notes: Combine pictures of handwritten pages or a whiteboard into one PDF that is easy to email to a teacher or classmate.
  • Insurance and warranty claims: Group damage photos and a copy of the receipt into a single attachment that tells the whole story at a glance.

Tips for the Best Results

  • Rotate before you upload. The converter places images as they are, so if a photo is sideways, rotate it in your phone's gallery first and it will appear upright in the PDF.
  • Match the page size to the destination. If the PDF will be printed in North America, choose Letter; for the rest of the world, A4 avoids the document being rescaled by the printer.
  • Use "Fit to page" for paperwork, "One per page" for photos. Documents look better filling the page; photos look better at their natural shape.
  • Keep files reasonably sized. Very large photos make a heavier PDF. If the final file is too big to email, run it through a PDF compressor afterward.
  • Name files for order. Numbered prefixes plus the alphabetical sort is the most reliable way to lock in a specific sequence.

Common Problems and Troubleshooting

  • "Maximum 20 images allowed." You have reached the per-batch limit. Build one PDF from the first 20 images, then create a second PDF for the rest, or remove some thumbnails first.
  • An image was rejected. Files must be a supported image type and under 20 MB each. A very large photo can be resized in your gallery app before uploading.
  • A photo appears rotated. Some phones store orientation in metadata that is not always applied. Rotate and re-save the image before adding it.
  • The pages are in the wrong order. Switch the Image Order control, or rename your files with numbered prefixes and use the alphabetical setting.
  • The PDF looks too large in file size. High-resolution photos produce big PDFs. Compress the images first, or run the finished PDF through a compression tool.

How It Works in Your Browser

When you add images, your browser reads them into memory and shows each one as a local preview using an object URL — a temporary reference that points at the file on your own machine. On conversion, jsPDF creates a new document at your chosen page size, adds a page for each image in the order you selected, centers and scales every picture to fit, and then triggers a download. Because the entire pipeline runs in JavaScript on your device, no image is ever sent to a server, which makes the tool safe for receipts, identity documents, and anything else you would not want passing through someone else's computer. Close the tab and every image is cleared from memory.

Next steps

Before this step

What to do with the result

Guides

Browse all PDF tools, or see every QuickMerge tool.

Wondering how big a file this can take? We measured it: see Image to PDF on the measured limits page, or the browser support matrix.

Frequently Asked Questions

Are my images uploaded to a server?

No. Every image is read and assembled directly in your browser using the jsPDF library. The pictures never leave your device, so private receipts, ID scans, and personal photos stay completely on your machine.

Which image formats can I combine?

You can mix JPG, PNG, GIF, BMP, and WebP images in the same PDF. There is no need to convert them to a single format first; the tool handles each one and places it on its own page.

How many images can I add, and how large can each be?

Up to 20 images per PDF, with each file up to 20 MB. If you have more than 20, build several PDFs and, if needed, merge them afterward with a separate PDF merge tool.

How do I control which image comes first?

Use the Image Order control to keep your upload order, sort alphabetically by filename, or reverse the sequence. For precise control, rename your files with numbered prefixes such as 01, 02, 03 and choose the alphabetical option.

What is the difference between "one image per page" and "fit to page"?

"One image per page" keeps each picture near its natural proportions and centers it, which suits photos. "Fit images to page" scales each picture to fill the page within the margins, which looks tidier for scanned documents and forms.

Will converting reduce my image quality?

The tool places your images into the PDF without re-shooting them, so they look the same as the originals at the size they are displayed. Very large photos may make a heavier PDF; if size is a concern, compress the images first or compress the finished PDF.

Can I choose a paper size for printing?

Yes. Pick A4, US Letter, or Legal so the PDF matches the paper it will be printed on. Choosing the right size avoids the printer rescaling your pages and shifting the margins.

Does it work on a phone?

Yes, it runs in any modern mobile browser, so you can photograph documents and build a PDF without a computer. Adding many large photos at once will use more of your phone's memory, so very big batches go faster on a desktop.

How do I convert JPG to PDF under 100KB?

Add the photographs, set Target PDF Size to 100 KB and convert. The PDF is built, measured and rebuilt at lower quality until it fits, so the finished document is under the cap rather than close to it. One photo reaches 100KB comfortably; three at that cap will look soft.

How do I make a JPG to PDF 200KB or 300KB file?

Both are in the target list. 300KB is the most forgiving of the common caps and holds several photographs at readable quality. The tool reports the size it achieved, so you can check before uploading.

How do I convert an image to PDF at 50KB?

Select 50 KB as the target. It is reachable for a single photograph and will show visible compression. If a form demands 50KB for multiple pages, photographs are the wrong input for that limit — a scan compresses far better at the same byte count.

Does setting a size target reduce the image quality?

Yes, and that is the trade being made. Quality is lowered first and dimensions only if quality alone cannot reach the number, so you get the best-looking version that fits rather than the smallest possible file. Leave the target off for maximum quality.

Why did my transparent PNG turn white in the PDF?

Because a size target forces JPEG, the only format whose size responds to a quality setting, and JPEG has no transparency. The image is flattened onto white. Leave the target off to keep PNG and WebP transparency.

Are my photos uploaded to build the PDF?

No. The images are read into memory, drawn onto a canvas and written into the PDF in your browser, including every attempt the size search makes. Nothing is transmitted, which matters when the photographs are identity documents for a form.

Photos into a PDF under a byte cap

How to convert JPG to PDF at 100KB, 200KB or 300KB

Almost every form that wants photographs as a PDF also caps the file size, and the cap is enforced exactly. The target selector above builds the document, measures it, and rebuilds at lower quality until it fits.

Why the conversion and the size cap belong in one step

Converting first and compressing afterwards is the route most people are pushed down, and it loses quality twice: once when the images are written into the PDF, again when the finished PDF is re-rendered to shrink it. Setting the target here compresses the photographs once, on the way in. The document is rebuilt and measured at each attempt, so the size you asked for is the size of the finished PDF rather than an estimate.

What fits at each cap

One photograph at 100KB is comfortable and looks fine on screen. Two or three at 100KB means roughly 30KB each, which softens visibly. A 300KB cap is the friendliest of the common ones and holds several photos at readable quality. If a form wants many pages under a small cap, the honest answer is that photographs are the wrong input for that limit and a scan of the document will compress far better.

Transparency is lost when a target is set

Reaching a byte target means JPEG, because it is the only format here whose size responds to a quality setting. JPEG has no alpha channel, so a PNG with a transparent background is flattened onto white. That is the right trade for a photograph and the wrong one for a logo — leave the target off and the original format is preserved, transparency intact.

When the cap cannot be met

The search stops at a fixed set of quality and dimension steps rather than shrinking indefinitely, so a set of photographs that cannot reach the cap comes back at the smallest size produced, with the quality and scale it settled on named. It does not silently hand you a file that misses. At that point the only remaining levers are fewer images or smaller ones — cropping to the part that matters with the cropper usually recovers more than any further quality reduction.