Can I combine JPG and PNG images in the same PDF?
Yes. You can mix JPEG, PNG, WebP, GIF, HEIC and AVIF images. Each image becomes one page in the final PDF. The tool handles different formats automatically.
Images to PDF
Convert Images to PDF Online
Convert JPG, PNG and other images into a single PDF file. Merge multiple photos or scans for easy sharing, printing, or official forms. Everything stays in your browser.
Last updated: August 2026
Merge
Multiple Images
JPG + PNG
All Formats
Reorder
Drag & Drop
Private
No Uploads
Drop images here or click to browse
JPEG, PNG, WebP, GIF, HEIC, AVIF - all processing stays in your browser
How to convert images to PDF
Five steps, all running locally in your browser.
01
Drop your images
JPG, PNG, WebP, GIF, HEIC or AVIF, mixed freely. Nothing is uploaded, everything stays on your device.
02
Reorder pages
Drag a row to a new position, or use the up and down arrow buttons.
03
Choose page size
Fit to image sizes each page to its own photo. A4 or Letter give uniform pages, with orientation and margin.
04
Set a filename, optional
Defaults to images.pdf if left blank.
05
Create and download
Non-JPEG, non-PNG files are transcoded to JPEG automatically. Then download.
Supported image to PDF conversions
JPG to PDF
Convert JPEG photos from cameras and phones into PDF pages.
PNG to PDF
Convert PNG screenshots, graphics and documents to PDF.
Multiple images to PDF
Combine any mix of JPG, PNG, WebP, GIF, HEIC and AVIF into one PDF file.
WebP, GIF, HEIC and AVIF images are automatically transcoded to JPEG during conversion, native JPEG and PNG embed untouched. You can mix different formats in the same PDF without any extra steps.
Common use cases
Job applications
Combine your photo, ID proof and supporting documents into one PDF before uploading.
School and university submissions
Turn scanned assignments, handwritten notes or supporting photos into a single PDF.
Government and official forms
Many portals require all supporting documents as one PDF file rather than separate images.
Receipts and expense claims
Group multiple receipt photos into one organized PDF for reimbursement or record keeping.
Photo portfolios
Create a clean PDF collection of selected photos for clients or personal archives.
Insurance claims
Submit damage photos and evidence together as a single PDF document.
Choosing the right page size
Fit to image creates each page at the exact size of that page's own source image. This is best for a single photo or a batch of similarly sized images. If your batch mixes very different resolutions, expect the pages to be different sizes throughout the finished PDF.
A4 is the standard size used in most countries outside North America. Use this when the PDF will be printed or submitted to systems expecting a standard document format, or when you need every page in the document to be the same size.
Letter is the standard paper size in the United States and Canada.
Why no-upload matters for images to PDF
Many online image to PDF tools upload your files to a server. This becomes risky when combining sensitive documents like IDs, bank statements, medical records or official certificates.
This tool uses pdf-lib, a JavaScript library that builds the PDF entirely in your browser. No files are sent to any server. You can even disconnect from the internet after the page loads and the converter still works.
Common images to PDF mistakes
Assuming this tool has an adjustable quality slider
It doesn't. Native JPEG and PNG embed untouched, but WebP, GIF, HEIC and AVIF are all transcoded to JPEG at a fixed quality of 82. If you need control over that setting, convert to JPEG first at your chosen quality with a dedicated converter, then combine the JPEGs here.
Leaving page size on Fit to image for photos of different resolutions
Fit to image sizes each page to that specific image's own dimensions, so a batch with photos of different resolutions will have differently sized pages throughout the PDF. Switch to A4 or Letter for uniform pages.
Combining a transparent AVIF with other formats and expecting a clean result
The generic WebP and GIF transcode path explicitly fills a white background before flattening to JPEG, but HEIC and AVIF go through a separate path that doesn't do this. A transparent AVIF source could render unpredictably once flattened. If you need a guaranteed clean background, flatten it against white with an editor first.
Expecting the file size to shrink automatically
This tool focuses on combining images into a document, not compressing them. If the resulting PDF is too large for a portal's upload limit, compress your source images before combining, or compress the finished PDF separately.
Forgetting to reorder before clicking Create PDF
Pages are generated in whatever order the list shows at the moment you click Create PDF. Drag rows or use the arrow buttons to set the final order first.
Why use ImgTweak?
Runs entirely in your browser
No uploads, ever
No watermark, ever
Mix JPG, PNG, WebP, GIF, HEIC and AVIF in one PDF
Drag or button-based reordering
Free forever, no account needed
Need another PDF or image task?
PDF to Images
Extract every page from a PDF as individual JPG or PNG files
HEIC to JPG
Convert iPhone HEIC photos to JPEG before combining into PDF
PNG to JPG
Convert PNG files to JPEG when transparency is not needed
Image Compressor and Editor
Compress, crop, resize and edit images before converting to PDF
Frequently asked questions
Does converting reduce image quality?
It depends on the source format. Native JPEG and PNG files are embedded exactly as-is, with no re-encoding at all. Every other format, WebP, GIF, HEIC and AVIF, is automatically transcoded to JPEG at a fixed quality of 82 before embedding, there's no slider to adjust that setting on this page. For most photos the visual difference is negligible, but if you need control over that quality, convert your source to JPEG first with a dedicated converter at your chosen quality, then combine the resulting JPEGs here, since native JPEG skips the transcode entirely.
Are my images uploaded to any server?
No. Everything runs locally in your browser using pdf-lib. Your images never leave your device. The tool continues to work even if you disconnect from the internet.
How many images can I add to one PDF?
There is no strict limit. Most users can comfortably combine 50 to 100 images. Very large batches with high-resolution photos may slow down depending on your device.
What is the Fit to image option?
It creates each PDF page at the exact size of that page's own image. Landscape photos get landscape pages and portrait photos get portrait pages. This is ideal for a single photo or a batch of similarly-sized images. One thing to know: if your batch mixes photos of very different resolutions, each page ends up a different size throughout the document, since Fit to image sizes every page independently. Choose A4 or Letter instead if you need every page in the PDF to be the same size.
Can I change the order of the images?
Yes. Drag the rows using the handle on the left or use the up and down arrows to reorder pages before creating the PDF.
Can I set a custom filename for the PDF?
Yes. A filename field appears once you've added at least one image, defaulting to images.pdf if you leave it blank. Type whatever name you want before clicking Create PDF, the .pdf extension is added automatically.
Why convert images to PDF instead of sending separate files?
Many government portals, job applications, university submissions and insurance forms require a single PDF document rather than multiple image files.
Ready to build your PDF?
No sign-up. No uploads. Drop your images above and download the PDF in seconds.