Can a PDF contain HEIC images directly?

No. PDF understands JPEG and PNG image data and nothing else of this kind, so a HEIC has to be decoded and re-encoded before it can become a page. This tool does that step for you, which is why you do not need to convert twice.

Does that re-encoding lose quality?

A little, since HEIC and JPEG are both lossy and the image passes through a second encoder. It is done at a high quality setting, so the difference is not visible at normal viewing sizes. Your original files are never modified.

How do I control the page order?

The list is the order. Use the arrows beside each file to move it up or down before building, and the cross to remove one added by mistake.

Is there a limit on how many images I can include?

None imposed. There is no upload and no server, so your device's memory is the only ceiling.

Will the PDF have a watermark?

No. Nothing is stamped onto the pages, and no feature is held back behind a paid tier.

Are my images uploaded?

No. The decode, the re-encode and the PDF assembly all happen in this browser tab. The Uploaded readout beside the result measures the page's own outbound traffic, so a successful build reads 0 B.

Does each page match the image size?

Yes. Pages are sized to their image rather than forced onto A4 or Letter, so nothing is cropped and nothing is letterboxed.

Why is my PDF larger than the images I started with?

Because HEIC compresses more efficiently than JPEG, and JPEG is what PDF can store. Storing the same pictures in an older format costs more space — that is the price of a document anyone can open.

Can I mix formats in one PDF?

Each page here handles one input format so the conversion path stays predictable. Build separate PDFs and then merge them if you need a mixed document.

What happens to transparency?

It is lost. JPEG has no alpha channel, and PDF pages have a white background, so transparent areas become white.

Convert HEIC to PDF

iPhone photos bound into one document, in the order you choose. Converted and assembled on your own machine.

ReadyBuild PDF

Uploaded0 B

How do I turn HEIC images into a PDF?

To convert HEIC images into a PDF, drop them onto this page, arrange them in the order you want and download the combined document. Each image becomes one page. PDF cannot store HEIC directly, so each one is re-encoded as JPEG first — all of it in your browser, with nothing uploaded.

How to do it

Add your HEIC files. Drag them onto the panel or click to choose. Every image becomes one page of the finished document.
Arrange the order. Pages follow the list from top to bottom. Use the arrows to move a file and the cross to remove one.
Build the PDF. Each image is decoded and re-encoded as JPEG, then embedded. Both steps run locally — nothing is transmitted.
Download the document. One PDF, in your chosen order, with no watermark and no account required.

At a glance

Works on	PDF documents
Where it runs	In this browser tab. The file is not uploaded
File size limit	None imposed — your device memory is the ceiling
Cost	Free
Account needed	No
Watermark	None
Works offline	Usually after first use, but not guaranteed — there is no offline app

Photographed paperwork into a single document

This is the most common reason to be here: you have photographed several sheets of paper with an iPhone, and you need one PDF to send.

Because iPhones save HEIC by default, the obvious route — convert to JPG, then build a PDF — takes two passes through two different tools. This page does both steps at once.

Add the photographs, put the list in the right order, and build. Each becomes a page sized to the image itself.

The documents people photograph are rarely trivial: passports, bank statements, signed contracts, medical forms. None of it leaves your machine here.

Why the images are re-encoded

PDF is older than every format on this page, and it understands only two kinds of image data: JPEG and PNG.

That means a HEIC cannot simply be dropped into a document. It has to be decoded back to pixels and re-encoded as JPEG before it can become a page.

Doing that here rather than making you convert twice is the point of this page. Nobody should need to know that PDF has never heard of HEIC.

The cost is one extra lossy step, done at a high quality setting. If you want to avoid it entirely, convert to JPG first at whatever quality you prefer, then use the JPG to PDF page.

Expect the PDF to be larger than the images

HEIC compresses more efficiently than JPEG. Storing the same pictures in the format PDF can read therefore costs more space.

That is not a failed conversion — it is the price of a document that opens on anything.

If size matters more than convenience, there is no HEIC compressor to reach for — no browser can write HEIC at all, because the format is patent-encumbered. Convert to JPG first at a quality you choose, compress those, then build the document with JPG to PDF.

Nothing is transmitted

The decode, the re-encode and the assembly all happen in this browser tab, using the same codecs the rest of the site uses and pdf-lib for the document itself.

The Uploaded readout beside the result measures this page’s own outbound network calls directly, and reads 0 B on a successful build. That matters here more than on most pages: images people bind into PDFs are usually documents rather than snapshots.

Questions

Can a PDF contain HEIC images directly?: No. PDF understands JPEG and PNG image data and nothing else of this kind, so a HEIC has to be decoded and re-encoded before it can become a page. This tool does that step for you, which is why you do not need to convert twice.
Does that re-encoding lose quality?: A little, since HEIC and JPEG are both lossy and the image passes through a second encoder. It is done at a high quality setting, so the difference is not visible at normal viewing sizes. Your original files are never modified.
How do I control the page order?: The list is the order. Use the arrows beside each file to move it up or down before building, and the cross to remove one added by mistake.
Is there a limit on how many images I can include?: None imposed. There is no upload and no server, so your device's memory is the only ceiling.
Will the PDF have a watermark?: No. Nothing is stamped onto the pages, and no feature is held back behind a paid tier.
Are my images uploaded?: No. The decode, the re-encode and the PDF assembly all happen in this browser tab. The Uploaded readout beside the result measures the page's own outbound traffic, so a successful build reads 0 B.
Does each page match the image size?: Yes. Pages are sized to their image rather than forced onto A4 or Letter, so nothing is cropped and nothing is letterboxed.
Why is my PDF larger than the images I started with?: Because HEIC compresses more efficiently than JPEG, and JPEG is what PDF can store. Storing the same pictures in an older format costs more space — that is the price of a document anyone can open.
Can I mix formats in one PDF?: Each page here handles one input format so the conversion path stays predictable. Build separate PDFs and then merge them if you need a mixed document.
What happens to transparency?: It is lost. JPEG has no alpha channel, and PDF pages have a white background, so transparent areas become white.