Each image becomes one page, in the order shown. Photos are embedded as JPEG to keep the PDF small; images with transparency, and images from lossless formats, are embedded as PNG.
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What is a JPG to PDF converter?
A JPG to PDF converter places JPEG photos onto the pages of a PDF document, one photo per page. The usual reason is a form. A visa application, a rental agreement, an insurance claim or a school portal asks for "one PDF", and what you have is six phone photos of the pages, a picture of your ID card and a snapshot of a receipt. A PDF holds them together in a fixed order, opens the same way on every device and passes upload fields that refuse loose images.
By default every photo you add goes into one PDF, one page per image, in the order the files appear in the list. A batch comes back as images.pdf, and a single photo keeps its own name, so passport.jpg becomes passport.pdf. Tick One PDF per image when each photo should be its own document instead; with several files, Download All in the list header collects them as converted-pdf.zip.
Page size decides what the paper looks like. Fit to image makes each page exactly the size of its photo, one pixel to one point, which suits a PDF that will only be viewed on screen. A4 and US Letter are the sizes to pick for printing or for a form that expects a normal document: each photo is scaled up or down to fill the page and centered, and a landscape photo gets a landscape page, so a PDF can mix both orientations. The Small margin keeps a quarter inch (6.35 mm) of white around every photo, which stops a printer from clipping the edges.
Each photo is decoded by your browser and embedded as a JPEG at 92% quality. That keeps the PDF close to the combined size of the photos you added, and the size line on the PDF row shows the difference. The re-encoding passes through a canvas, so EXIF data, including the capture date and any GPS location, does not travel into the PDF. The pages are pictures, not text: nothing is recognized or made searchable.
Everything runs client-side. The photos are read and the PDF is written inside your browser tab with pdf-lib, a library that is downloaded only once you add the first photo, and no file is uploaded. A file this page cannot read shows its own error and is left out, while the rest of the PDF is still made. Images over 100 megapixels are refused rather than freezing the tab. The tool is free, no signup, with a daily limit on conversions. To go back the other way, the PDF to JPG converter turns each page into an image again.
How to convert JPG to PDF
Add the photos
Drop JPG or JPEG files onto the box reading Drop JPG images here or click to upload. The PDF is built as soon as they are added, with pages in the order of the file list.
Pick a page size and margin
Choose A4 or US Letter for anything that will be printed or submitted as a document, or Fit to image to keep each page the size of its photo. Set Margin to Small if the PDF is going to a printer. Tick One PDF per image if every photo should be a separate file. The PDF is rebuilt each time you change one of these.
Check the page order
Each photo is a row labeled Page 1, Page 2 and so on. Use the up and down buttons on a row to move a photo one place earlier or later, and the PDF is rebuilt in the new order. The PDF row at the top shows the page count, the size and a note on how the photos were embedded.
Download the PDF
Press Download PDF in the list header. With a single photo, use the download icon on its row instead. If you made one PDF per image, Download All saves every file at once as converted-pdf.zip.
Why convert JPG to PDF?
Photos are the easiest way to capture paper, and PDF is the format most places want paper delivered in. The gap between the two comes up in a few predictable situations.
Forms that ask for a single document
Government, university and bank portals often have one upload field labeled with a PDF icon. Five photos of a signed lease will not go through it, and uploading only the first page is not an option. Combining the photos into one PDF, in page order, turns them into the single file the form expects.
Phone scans of paper documents
A photo of a receipt, a doctor's note or both sides of an ID card is a perfectly readable scan. Putting those photos on A4 or US Letter pages makes them print at a normal paper size and read like a scanned document rather than a camera roll.
Sending photos as one attachment
Twenty photos attached to an email are twenty separate files, and the person opening them has to work out which comes first. A PDF keeps the sequence you set, opens with one click and scrolls from page to page, which suits damage reports, property inspections and step-by-step instructions.
JPG vs PDF: which to use
| Feature | JPG | PDF from this page |
|---|---|---|
| What it holds | One image. | Many pages, one photo per page. |
| Compression | JPEG, lossy. | Each photo stored as JPEG at 92% quality. |
| Page order | None. Each file stands alone. | Fixed, in the order the photos were added. |
| Paper size | None. The file is only pixels. | Fit to image, A4 or US Letter. |
| Typical file size | A few MB per phone photo. | Close to the combined size of the photos. |
| Searchable text | No. | No. The pages are images, not recognized text. |
| EXIF and GPS | Kept in the file. | Not carried into the PDF. |
| Accepted by upload forms | Often, but not when the form wants one document. | Usually, wherever documents are requested. |
| Best for | Sharing and editing a single photo. | Submitting, printing and archiving several pages together. |
Page size and order for printing and forms
A PDF measures pages in points, 72 to the inch. A4 is 595 by 842 points (210 by 297 mm) and US Letter is 612 by 792 points (8.5 by 11 inches). With Fit to image, a photo 4,000 pixels wide makes a page 4,000 points wide, about 55 inches. That looks normal in a PDF viewer, which zooms to fit the window, but it is an odd size for a printer or a document checker. Very large photos are shrunk so no side passes 200 inches, the most PDF viewers accept.
A4 and US Letter solve that by scaling each photo to the paper. A typical 12-megapixel phone photo, 4,032 pixels across, spread over the 8.27-inch width of A4 gives close to 490 pixels per inch, which prints sharply. The scaling goes both ways, though: a 600-pixel thumbnail stretched to fill A4 lands near 70 pixels per inch and looks soft on paper. Start from the full-size photo, not a copy a messaging app has shrunk.
Each page picks its own orientation. A photo wider than it is tall gets a landscape page, anything else portrait, so a set that mixes shots of a document and a sideways panorama stays readable without rotating anything. Page order is the order of the file list. Each row shows its page number, and the up and down buttons on it move a photo one place earlier or later, with the PDF rebuilt after every move.
Privacy and security
- The PDF is built client-side. Your photos are decoded and written into the PDF inside the browser tab, and no photo or PDF is uploaded, which matters when the pages are passports, bank statements or medical letters.
- The daily limit check sends the tool name and a device identifier, plus your account token if you are signed in. After a batch, only the file count, total bytes and output format are recorded, never file names or image data.
- EXIF data, including GPS coordinates and the camera model, is not copied into the PDF, because each photo is re-encoded before it is embedded.
- The PDF records Toolz.dev as the program that made it, and nothing else about you or your files.
- Photos and finished PDFs stay in the tab's memory until you remove them, press Clear All or close the page. No copy is kept on a server.
Key Features
Many photos, one PDF
Every JPG you add becomes a page of a single PDF, in the order shown, so a stack of phone scans turns into one document for a form.
A4 and US Letter pages
Photos are scaled to fill the paper and centered, with landscape pages for landscape photos, so the PDF prints at a normal document size.
Fit to image for screen use
Each page takes the exact size of its photo, one pixel to one point, with no scaling at all.
Margin for printing
The Small margin leaves a quarter inch of white on every side, so a home printer does not cut off the edge of a document.
Frequently Asked Questions
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