How to use the JPG to PDF
- 1
Drop your images into the box or click to select them. You can pick many at once and add more later.
- 2
Arrange the pages with the up and down arrows next to each thumbnail, and remove any photo you don't want.
- 3
Choose the page size (A4, Letter or Fit to image), the orientation and the margin.
- 4
Press Convert to PDF. The file downloads as images.pdf.
How each photo is placed on the page
Every image becomes one page, in the order shown in the list. On A4 or Letter, the picture is scaled to fit inside the page margins without stretching, then centred both ways. A tall photo on a portrait A4 page touches the top and bottom margins; a wide one touches the sides.
Orientation set to Auto turns each page to suit its picture: landscape for wide images such as a horizontal Aadhaar scan, portrait for tall ones such as a photographed A4 letter. In a document where some photos are wide and some are tall, you get a mix of page orientations, which is usually what you want for reading on a screen. If the file is going to be printed, choose Portrait so every page comes out the same way.
Fit to image skips standard paper sizes altogether and makes each page the shape of its photo, plus whatever margin you pick. This is the best option for screenshots, receipts and anything that will only be viewed on a phone.
| Setting | Size | Good for |
|---|---|---|
| A4 | 210 × 297 mm | Printing in India, most forms and offices |
| Letter | 8.5 × 11 in (216 × 279 mm) | Documents for the US or Canada |
| Fit to image | Same shape as the photo | Screenshots, receipts, on-screen reading |
| Margin: Small | 10 mm on each side | A clean border that printers won't clip |
| Margin: Large | 20 mm on each side | Room for stapling or hole-punching |
What happens to image quality
JPG photos are placed into the PDF exactly as they are, without being compressed again. That keeps every bit of detail, and it also means the PDF ends up roughly as heavy as all the JPGs added together. Ten 3 MB phone photos make a PDF of about 30 MB.
PNG images are stored without loss as well, and transparent areas stay transparent, which shows as white in nearly every PDF reader. WebP images, and the occasional GIF or BMP, are first converted to high-quality JPG in your browser because the PDF format can't hold them directly. Phone photos that are only marked as rotated, rather than actually stored upright, are redrawn the right way up so they don't come out sideways.
If the finished PDF is too big for a portal, shrink the photos before converting. Our Compress Image tool can bring a 4 MB photo down to 200 or 300 KB with no difference you would notice on an A4 page.
Practical uses
- Certificates and marksheets photographed on a phone, combined into the single PDF that a college or job portal asks for.
- Aadhaar front and back as two pages of one file, which is how many banks and offices want it for KYC.
- Handwritten assignment pages turned into one PDF to submit on Google Classroom or mail to a teacher.
- Bills and receipts for a reimbursement claim, set to Fit to image so each slip fills its own page.
- A set of property or vehicle photos sent to an insurer or a buyer as one attachment instead of fifteen.
Tips for scans that look professional
A good PDF starts with a good photo. Shoot the document flat on a dark table in daylight, holding the phone directly above it rather than at an angle, and let it focus before you tap. Crop away the table edges in your phone's gallery app first: the tool uses the whole image, so anything in the frame ends up on the page.
Small images are scaled up to fill the page. A 300-pixel signature placed on A4 will be stretched across the width and look blurry. For small images like that, choose Fit to image, or crop and resize them before converting.
Check the order in the list before converting. Phones often save photos in a different order to the one you took them in, especially after editing, and it is quicker to fix the list than to redo the PDF.
Privacy and limits
The images are read and the PDF is built with JavaScript on your own phone or computer. No file is uploaded and nothing is stored after you close the page, which matters when the photos are of identity documents.
HEIC photos, the default on many iPhones, can't be opened by most browsers. Set the iPhone camera to Most Compatible, or share the photos as JPG, before adding them. Very large batches, for instance 100 photos of 8 MB each, may exhaust the memory on an older phone; split the job into two PDFs and join them with Merge PDF if that happens.
Frequently asked questions
How do I convert JPG to PDF on my phone?
Open this page in your phone's browser, tap the box and choose the photos from your gallery. Arrange them, pick A4 and a small margin, then tap Convert. images.pdf is saved in your downloads.
Can I put multiple images into one PDF?
Yes. Add as many images as you need; each becomes one page, in the order of the list. You can keep adding images and reordering until you press Convert.
Does converting to PDF reduce photo quality?
JPG and PNG images are placed in the PDF without being compressed again, so quality is unchanged. Only WebP and other less common formats are converted to a high-quality JPG first.
Why is my PDF so large?
The PDF holds your original images, so its size is roughly their total. Compress the photos to a few hundred KB each before converting if a website has a size limit.
How do I make a PDF of my Aadhaar card front and back?
Add the front photo first and the back second, choose A4 with Orientation set to Portrait, and convert. Both sides are then in one file, each on its own page.
Is it safe to convert ID documents here?
Yes, as far as this tool goes: the images never leave your device because the PDF is created inside your browser. As always, delete copies you no longer need from your downloads folder.
Last updated on November 9, 2026