JPG to PDF at full quality

What JPG to PDF does, and when you need it

JPG to PDF puts your pictures into one PDF file, one picture per page, in the order you choose. It takes photos from your phone, scanned pages, screenshots and pictures saved from the web. It all happens inside your browser, with nothing uploaded, no sign-up and no watermark.

A PDF is often handier than a pile of pictures. It keeps the pages together and in order, opens the same way on every phone and computer, and prints well. People use it for:

• Forms and applications. Job, exam, college, visa and government portals often want certificates, marksheets and ID cards as a PDF, not as loose photos.
• Several photos as one file. The pages of an agreement or a report go as one attachment on email or WhatsApp, so none go missing or out of order.
• Receipts and expense reports. Photograph your bills as you go, then send a month of receipts to your office or accountant as one PDF.
• Homework and assignments. Handwritten pages, photographed one by one, become a single PDF for a teacher or a college portal.
• Documents without a scanner. A clear phone photo of each page, put into a PDF, does the job of a scan.

Why your pictures keep their full quality

A JPG is already compressed: to keep the file small, it leaves out fine detail that the eye hardly notices. Each time a JPG is opened and saved again as a new JPG, a little more detail goes. Text turns soft, edges smudge and faint blocks appear. A converter that saves every picture again before putting it into the PDF loses quality this way.

NoUploadPDF doesn't. A PDF can hold JPG picture data directly, so your JPG is copied into the PDF exactly as it is, without being compressed again. Nothing is lost, and it is fast, because there is nothing to unpack and pack again. This works for every common kind of JPG: baseline and progressive, colour and grayscale, even CMYK files from Adobe programs. Simple PNGs (black-and-white, grayscale, palette or colour, 8-bit or 16-bit, with no see-through parts) go in as they are too. When a picture carries a colour profile, the profile goes into the PDF with it, so the colours look the same as in the picture.

Other pictures are opened by the browser first. Most are stored again without any loss; photo formats that a PDF can't hold, like HEIC and lossy WebP, become high-quality JPGs. The table of picture formats shows each kind.

You don't have to guess which happened. When the PDF is ready, the result says it in plain words, such as "Every picture went in exactly as it was, at full quality."

Real results from our tests

We converted these pictures in Google Chrome on a computer. Times are what the page reported; your device may be faster or slower.

• Under 0.1 sto make a 20-page PDF from 20 photos
• 62.4 MBof photos in, a 62.4 MB PDF out: not compressed again
• 29kinds of pictures checked page by page
• 0.1 MBis about all a first visit downloads

The JPG photos and the plain screenshot went in untouched, so each PDF is about as big as its pictures. A PDF can't hold WebP, so the WebP photo became a JPG at 88% quality, which here was larger than the WebP.

Most of the waiting is for the small previews on the cards: for the 20 photos they took about 4 s, about 0.2 s a photo. While the cards appear, the page also reads each photo, so making the PDF after pressing Convert took under 0.1 s, and saving it 1 to 2 s. At its busiest, the browser used about 100 MB more memory than when idle.

We also check that every page looks right. We tested 29 kinds of pictures, including CMYK and progressive JPGs, photos with each of the 8 orientation tags a camera can write, photos and PNGs with colour profiles, 16-bit, interlaced and see-through PNGs, WebP, GIF and BMP. Every page matched its picture when drawn by a different PDF reader (poppler).

Step by step: documents for an online form

Say a job or exam portal wants your certificates as one PDF. Here is the whole way, from paper to upload:

1. Photograph each page. Lay it flat in good light and fill the frame with it. Photos from your phone has more tips.
2. Choose your pictures at the top of this page, then drag the cards into the order the form expects.
3. Pick A4 and a Small margin, and leave Direction on Auto. A4 is the usual paper size in India, and the margin keeps the edges safe if someone prints the PDF.
4. Convert and check. Press Convert, open the PDF and zoom in on names, dates and numbers. If a page is sideways, turn its card and convert again.
5. Fit the size limit. If the form says "under 100 KB" or similar, put the PDF through Resize PDF: it makes the sharpest version under the size you pick. Your photos went in at full quality, so it has all their detail to work with.
6. Upload it, and keep your photos. If another form wants a different size, start again from them.

Page size, direction and margin

These options appear once you add pictures. Whatever you pick, each picture is scaled to fit inside the margins and centred on its page. It is never cropped and never stretched.

Same as picture is the default: a wide photo gets a wide page and a tall receipt a tall one, with no empty paper around them. Pick A4 or Letter when the PDF will be printed, or when every page should be the same size.

Direction works with A4 and Letter. With Same as picture, each page already follows its picture.

• Auto gives each page its own direction: portrait for a tall picture, landscape for a wide one. Best for a mix.
• Portrait stands every page upright. Wide pictures get white space above and below.
• Landscape lays every page sideways, for wide photos, slides and screenshots.

Margin puts white space around each picture: None, Small (about 7 mm) or Big (about 18 mm). None is best for screens. Small is safer for printing, as many printers can't print right to the edge of the paper. Big leaves room to staple, punch holes or write notes.

Putting the pages in order

Each picture you add becomes a card, and the number on a card is its page number. New pictures go to the end. To move a card:

• With a mouse, drag the card from anywhere and drop it in its new place. The other cards move aside.
• With a finger, drag it by the numbered handle in its top-left corner. Touching the rest of the card scrolls the page as usual.
• With a keyboard, press Tab until the handle is selected, then use the arrow keys to move the card one place at a time. Home and End send it to the start or the end. Screen readers announce each move.

Each card also has two buttons in its top-right corner. The turn button (a round arrow) turns the picture a quarter turn to the right, 90° clockwise, each time you press it, without compressing it again. The remove button (an X) takes it out. With a mouse, the buttons appear when you point at a card.

If you change anything after converting, such as the order, a turn, an option or the pictures themselves, the Convert button comes back. That way the PDF you download always matches the cards you see.

Photos from your phone

They come out upright. Many phones save a photo as the camera saw it, with a note saying which way the phone was held. The converter follows that note, so your photos come out the right way up, still without being compressed again.

iPhone photos (HEIC). iPhones save photos as HEIC by default. Safari can open HEIC, but Chrome, Edge and Firefox can't, so in those browsers a HEIC photo's card shows a warning and is left out. Open this page in Safari, where HEIC photos go into the PDF as high-quality JPGs, or set your iPhone to take JPGs: Settings > Camera > Formats > Most Compatible.

Taking a good photo of a document. Each photo goes into the PDF as it is, so a good photo makes a good page:

• Use plenty of soft light, such as daylight near a window. Skip the flash, which leaves a bright patch on the paper.
• Lay the page flat on a plain, dark surface, so its edges stand out.
• Hold the phone straight above the page, not at an angle, so the lines stay straight.
• Fill the frame with the page, and tap the screen on the text to focus.
• Keep your shadow and fingers off the page.

What happens to each kind of picture

The converter takes JPG, PNG, WebP, GIF, BMP and AVIF pictures, plus HEIC and TIFF in browsers that can open them, such as Safari. Here is what happens to each kind:

See-through parts of any picture become white, like the paper under them. A PNG that has to be stored again is kept at 8 bits per colour, like most pictures, so a 16-bit PNG with see-through parts loses its extra shades of colour.

Private: your pictures stay on your device

Photos of documents are often private: ID cards, certificates, bank papers, medical reports. With NoUploadPDF they never leave your phone or computer. The converter runs inside your browser, the site's Content Security Policy blocks the page from sending data to any other site, and once the page has loaded it keeps working with the internet switched off.

Hidden notes are left out. Photos carry notes you can't see: the camera's make, model and settings, the date, and often the exact place where the photo was taken. These notes (EXIF, XMP, IPTC and comments) are left out of the PDF, and the result tells you when that happened. In our test, a photo with a GPS location, the camera's make and model and a comment went in. None of those notes were in the PDF, and the page still came out the right way up.

Only the picture goes in. Some phones store more after the picture in the same file, like the short video of a motion photo or extra copies of the picture. Only the picture itself goes into the PDF. In our test, a photo with 2 MB stored after it, the way phones store a motion photo's video, went in at the size of the picture alone.

The PDF itself records only that NoUploadPDF made it, and when. There is no account, no cookies of our own and no watermark. Our privacy policy has the details.

Compared with converters that upload your pictures

The usual way to convert pictures online is to upload them to a company's servers. Here is how that compares with doing the work on your own device:

Many upload-based tools are well made, and some promise to delete your files after a while. A picture that is never uploaded needs no such promise.

After converting: file size, printing and sharing

File size. The PDF is about as big as your pictures together: JPGs and simple PNGs go in as they are, and a PDF adds very little. To make it smaller for email or sharing, use our PDF compressor. To fit an exact limit, like 100 KB, use Resize PDF, as in the steps above.

Printing. Print windows offer two ways to size a page, with names that differ from app to app:

• Actual size (or 100%) prints the page at its real size. Use it for A4 pages on A4 paper, or Letter on Letter.
• Fit to page (or Fit to printable area) scales each page to the paper. Use it for Same as picture pages, and whenever the printer cuts off an edge.

Check the print preview before you print many copies.

Sharing. One picture gives a PDF with the same name, like IMG_2041.pdf. Several give the first picture's name and the page count, like IMG_2041-12-pages.pdf. Rename it before sending if you want a clearer name. With A PDF each, you get one ZIP file, like jpg-to-pdf-12-files.zip, holding a PDF named after each picture. The file manager on your phone or computer can open it.

Use it on Android, iPhone, Windows and Mac

There is nothing to install: the converter runs in an up-to-date browser on Android, iPhone, iPad, Windows, macOS, Linux and ChromeOS, and the page is light, with no engine to download.

• Android

  Open this page in Chrome or another up-to-date browser and tap Choose pictures. You can pick several photos at once from your gallery or files. The PDF is saved to your Downloads folder.

• iPhone and iPad

  Use Safari, which can also open HEIC photos. Tap Choose pictures and pick from your photo library or the Files app. The PDF usually goes to Downloads in the Files app.

• Windows, Mac, Linux, Chromebook

  Click Choose pictures, or drag pictures from a folder and drop them anywhere on the page. The PDF goes to your Downloads folder.

Problems and quick fixes

• A card shows a warning. The browser can't open that picture: usually a HEIC or TIFF file outside Safari, or a damaged file. It is left out, so it has no page number, and the other pictures still convert. Save the picture as JPG, or open this page in Safari, then add it again.
• A photo comes out sideways or upside down. The camera's note about how the phone was held was missing, perhaps removed by an app the photo passed through. Press the turn button on its card until it is upright, then convert again.
• The PDF is too big. It is about the size of your pictures. After converting shows how to make it smaller.
• A page looks blurry. The converter doesn't blur JPGs, so the picture itself was soft or small. Small pictures are enlarged to fill the page and can't gain detail. Take the photo again, closer and in better light.
• A picture is missing from the PDF. If one can't be read while the PDF is made, the result names it, and the PDF is made from the rest. Try saving that picture again as JPG.

Limits

• HEIC and TIFF only work in browsers that can open them, such as Safari. Chrome, Edge and Firefox can't open HEIC photos.
• Very large pictures. Pictures the browser has to open are limited to 64 megapixels, or 16 megapixels on iPhone and iPad, and larger ones are scaled down to fit. JPGs and simple PNGs have no such limit, because they go in as they are.
• Animated GIFs give only their first frame.
• No text recognition (OCR). Text in your photos stays part of the picture: you can read it, but you can't search, select or copy it in the PDF.
• No photo editing. The converter doesn't crop, straighten or brighten pictures.

Picture terms, explained

JPG or JPEG

The usual format for photos. It keeps files small by leaving out detail the eye hardly notices (it is "lossy"). JPG, JPEG and JFIF are the same thing.

PNG

A format that keeps every pixel exactly (it is "lossless"), common for screenshots and drawings. It can have see-through parts.

WebP and AVIF

Newer formats that many websites use for smaller pictures. A PDF can't hold them as they are, so they are stored again.

HEIC

The format iPhones use for photos by default. Safari can open it; Chrome, Edge and Firefox can't.

EXIF

Hidden notes a camera writes into a photo: make and model, settings, date, often the GPS location, and which way the phone was held.

Megapixel

A million pixels. A 12-megapixel photo is 4000 × 3000 pixels.