Images to PDF
One image per page. Add JPG/PNG files, drag to reorder, pick page size and fit. Everything stays in your browser.
How to Convert Images to PDF
Select your JPG or PNG files. Thumbnails appear in pick order; drag them to rearrange, because the PDF follows the thumbnail sequence from top-left onward. Choose a page size: Match each image keeps every photo at its own proportions, while A4 or Letter produce uniform printable pages. Then pick a fit mode. Fit inside page scales each image to sit comfortably within the margins without distortion. Fill page covers the entire page edge to edge, cropping sides when shapes differ. Click Create PDF and download the result.
Common Uses
Turning phone photos of receipts into one expense PDF, combining scanned ID pages, packaging screenshots for a bug report, or assembling a portfolio. Because JPGs embed without recompression, photo quality is preserved exactly. For the reverse job, turning PDF pages back into images, use PDF to JPG/PNG.
Tips for Best Results
Check image orientation before converting: a sideways photo becomes a sideways PDF page, so rotate images in your gallery first. Very high-resolution phone photos make large PDFs; if size matters, compress the images before adding them. Mixed portrait and landscape shots look best with "match image" sizing. Everything runs locally with pdf-lib, so personal photos never upload anywhere.
Preparing Images for a Clean PDF
Small prep work pays off. Check orientation first: a sideways photo in your gallery becomes a sideways PDF page, and fixing it afterward means rebuilding the file. Rename files in the order you want them before uploading, since the tool loads them in pick order and dragging dozens of thumbnails gets tedious. For consistent results, crop all images to the same aspect ratio in your photo app first, then use the match-image page size. If the final PDF feels too large, compress the source images before converting rather than after: a phone photo at full resolution can be 5 MB, while the same shot at 2000 pixels wide is under 500 KB with no visible difference on screen.
Frequently Asked Questions
How do I convert images to a PDF?
Add JPG or PNG files with the file picker, drag the thumbnails into the order you want, choose a page size and how each image should fit, then click Create PDF. The tool places one image per page and downloads the finished PDF. All processing happens in your browser, so your photos never leave your device.
What image formats are supported?
JPG (including JPEG) and PNG. These are the formats pdf-lib can embed directly. If your images are WebP, HEIC, or another format, convert them first with the Image Tools converters, then bring the JPG or PNG versions here. Very large images are embedded as-is; the PDF page count equals your image count.
What do the fit options mean?
"Fit inside page" scales each image down to fit within the page while keeping its aspect ratio, leaving white margins where needed. "Fill page" scales the image to cover the whole page, cropping edges if the shapes differ. "Original size" places the image at its native pixel dimensions centered on the page, which can overflow on small pages, so prefer the fit options for predictable results.
Which page size should I choose?
"Match image" creates each page at the exact proportions of its image, which looks natural for mixed photo sets. A4 and Letter give uniform pages suited to printing and official documents. When images differ in orientation, "match image" avoids awkward margins; when you need a tidy printable file, pick A4 or Letter with "fit inside page."
Will my photos lose quality?
JPG images are embedded without recompression, so they keep their exact quality. PNG images are embedded losslessly as well. The PDF simply wraps your images with page structure around them; no pixels are altered. File size will be roughly the sum of your image sizes plus a small overhead.
Are my photos uploaded anywhere?
Never. The PDF is assembled with pdf-lib entirely inside your browser tab. Images are read from your device into memory and the finished PDF downloads straight back. The tool works offline once the page has loaded, and it is safe for IDs, receipts, and personal photos.