JPG → PDF

Turn JPG photos into one PDF, one page per image, without re-compressing them.

How to convert JPG to PDF

Add one or more JPG or JPEG files.
Tick the images to include and put them in order with the arrows.
Rotate any image that is on its side.
Choose Match each image or Fit inside A4, and an orientation and margin for A4.
Press Create PDF and download the PDF.

Options

Order and selection: Tick an image to include it and use the up and down arrows to move it. Untick it to leave it out without closing the file.
Rotate: Turns one image 90° clockwise per click. The row shows the total turn before you create the PDF.
Page size: Match each image makes every page the size of its image, one pixel to one point, with no margin. Fit inside A4 puts every image on a 595 × 842 pt page: large images shrink to fit, smaller ones stay at their own size and are centred. Images are never cropped or enlarged.
Orientation: Shown with Fit inside A4. Portrait or Landscape applies to every page in the PDF.
Margin: Shown with Fit inside A4. None is 0 pt, Narrow is 18 pt (a quarter inch) and Standard is 36 pt (half an inch) on every side.
Page preview: Press Preview on a row to see where the photo sits on its page with the current size, margin and rotation. It also applies the camera's orientation tag, so you can see whether a phone photo will come out upright.
Output PDF name: Up to 120 characters, without slashes or control characters. The .pdf extension is added. Left blank, one image keeps its own name and several become images.pdf.

What you get

One PDF with one page per ticked photo, in the order shown.
Each JPEG within the device limit is placed in the PDF byte for byte. It is not decoded or re-saved, so the photo keeps its exact quality and the PDF is roughly the size of the photos combined.
A JPEG over the limit is scaled down and re-saved as a high-quality JPEG (quality 90). The result's Verified line says how many images were scaled.
The camera's orientation tag is applied, so a portrait photo taken with the phone upright stays upright.
The page holds a picture of the content. Text in a photographed document is not selectable or searchable.

Limits

This page takes JPEG files only (.jpg and .jpeg). Use PNG to PDF, HEIC to PDF or TIFF to PDF for those formats.
An image larger than 16 megapixels on a computer or Android device, or 4 megapixels on iPhone, iPad and devices with 2 GB of memory or less, is scaled down to that size with its proportions kept. The review lists each image that will be scaled, and to what, before you press the button.
Images above 64 megapixels on a computer or Android device, or 25 megapixels on iPhone, iPad and devices with 2 GB of memory or less, are refused before you start, and the disabled button names the file.
Scaling does not change the page size. With Match each image the page is still sized from the original pixel dimensions; only the embedded image has fewer pixels.
On iPhone and iPad a 24-megapixel photo keeps about a sixth of its pixels, which is fine for reading and sharing. Convert on a computer to keep up to 16 megapixels. A 48-megapixel photo is refused on iPhone and iPad; convert it on a computer, or set the camera to 24 or 12 megapixels.
A JPEG copied as it is keeps its EXIF data, including GPS location, in the PDF. A scaled JPEG is re-saved without EXIF data, though its orientation is still applied.
With Match each image, photos of different sizes give pages of different sizes in the same PDF.
There is no OCR here. Text in a photo stays part of the image.

Check the result

After the run, Deckle reopens the PDF and checks that it opens, has one page per photo and that each page has the planned size. Open the download yourself and page through it to confirm the order and that no photo is sideways.

Questions

Does converting JPG to PDF reduce photo quality?

Not within the device limit. The JPEG data is placed in the PDF unchanged, and with Fit inside A4 a large photo is only drawn smaller on the page. A photo over 16 megapixels on a computer, or 4 megapixels on iPhone and iPad, is scaled down and re-saved at quality 90, and the review lists it before you convert.

Will phone photos come out sideways?

Not usually. Phones often store the photo sideways with a tag that says which way is up, and Deckle reads that tag and turns the page to match. If a photo is still wrong, press Rotate on its row.

How many JPGs can I put in one PDF?

There is no fixed count. Photos over the device's pixel limit are scaled down, photos over 64 megapixels (25 on iPhone and iPad) are refused, and very large batches are bounded by the memory your browser can use.

Are my photos uploaded?

No. The PDF is built in your browser and the photos stay on your device.

Will the location data from my photos end up in the PDF?

It can. A JPEG within the device limit is copied without changes, so EXIF data inside it, including GPS coordinates, travels with it. A JPEG that is scaled down is re-saved without its EXIF data. Strip location from the photos first if the PDF will be shared.

Can I change the order after adding the photos?

Yes. Use the up and down arrows on each row. Undo, Redo and Reset work on order, rotation and page settings until you press Create PDF.