How does a JPG to PDF converter work?
A JPG to PDF converter places each image on its own PDF page and saves them as one file. This one runs in your browser with the open-source pdf-lib library, so private documents such as Aadhaar or marksheets are never uploaded to a server.
Features
- JPG, PNG, WebP, HEIC (where the browser supports it) and more
- Up to 40 images, one per page
- Reorder or remove pages before saving
- A4, US Letter or the image's own size
- No margin, small or large margins
- No watermark, no upload, no account
How to use the JPG to PDF
- Choose your photos or drop them on the box.
- Use the arrows to put the pages in the right order.
- Pick A4 for Indian forms and printing, and a margin.
- Press Make PDF, then Download PDF.
Tips for scanned documents
- Photograph pages in daylight, flat and straight on, with no shadow from your phone.
- Crop each photo to the page edges before converting; it makes the PDF look scanned rather than photographed.
- Portal limits such as 200 KB or 1 MB are common. Shrink large photos with the image compressor first, then convert.
- Landscape photos are turned sideways automatically so they fill the page.
Typical file sizes
| Input | Approximate PDF size |
|---|---|
| 1 phone photo (3–4 MB) | 3–4 MB |
| Same photo compressed to 1280 px | 150–300 KB |
| 5 compressed document photos | 1–1.5 MB |
The PDF keeps your images as they are, so its size is close to the total of the images you add.
Frequently asked questions
Is it safe to convert Aadhaar or PAN photos here?
Yes. The PDF is built inside your browser and your images are not uploaded anywhere. Close the tab when you are done.
Can I convert on my phone?
Yes. On Android and iPhone, tap Choose photos, select them from your gallery, then download the PDF to your Files app.
How do I make the PDF smaller?
Compress the photos first with the image compressor (1280 px wide at 70% is plenty for documents), then convert them.
Is there a watermark or page limit?
No watermark. Up to 40 images per PDF; for more, make several PDFs and join them with Merge PDF.
Last updated 15 November 2026. Made by Criza Labs. Spotted a mistake? Tell us.