Free · Fast · Privacy-first

PNG to PDF Online

Online PNG to PDF converters traditionally upload your image to a server, queue it behind other users, process it remotely, and email or stream back the result.

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No upload to any server

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No install on the machine

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No account or sign up

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Works on shared and locked-down computers

Cost: Free tier
Sign-up: Not required
Processing: Tool-specific
Privacy: Clearly disclosed

FreeNo signupWhite-label

Add this Image to PDF to your website

Drop the Image to PDF into any page — blog post, product docs, intranet, school portal — with a single line of HTML. Your visitors get the full tool, processed entirely in their browser. No backend, no uploads, no signup.

Files stay 100% in the visitor's browser
Responsive — adapts to any container width
Free forever, no API key needed

Embed code

<iframe
  src="https://www.fixtools.io/pdf/image-to-pdf?embed=1"
  width="100%"
  height="780"
  frameborder="0"
  style="border:0;border-radius:16px;max-width:900px;"
  title="Image to PDF by FixTools"
  loading="lazy"
  allow="clipboard-write"
></iframe>

<iframe
  src="https://www.fixtools.io/pdf/image-to-pdf?embed=1"
  width="100%"
  height="780"
  frameborder="0"
  style="border:0;border-radius:16px;max-width:900px;"
  title="Image to PDF by FixTools"
  loading="lazy"
  allow="clipboard-write"
></iframe>

Attribution-friendly: a small "Powered by FixTools" link appears in the embed footer.

What "online" actually means for a browser-based PNG to PDF converter

The word "online" implies different architectures across the web. Most online image converters are server side: they accept your upload, process the file on their backend, and let you download the result. This model has tradeoffs: your file travels across the public internet at least twice, sits in a temporary storage bucket while it is being processed, and depends on the service's queue depth to determine how long you wait. FixTools is online in the sense that you reach it through a browser without installing anything, but the conversion itself happens entirely on your own machine using JavaScript that the page delivers to your browser. This is sometimes called client-side or in-browser processing. It combines the convenience of an online tool (no install, works on any device, accessible from anywhere) with the privacy of a desktop tool (no uploads, no server retention, no queue).

For PNG to PDF specifically this architecture is a particularly good fit because PNG files tend to contain sensitive content: screenshots of financial dashboards, captures of internal tools, exports of design mockups under NDA, evidence images for legal matters. Sending these through a server side converter means trusting that the operator deletes the file after processing, does not log the contents, and applies appropriate access controls to the temporary storage. None of those trust assumptions are needed when the conversion runs locally. You can verify the absence of network activity by opening the browser developer tools, switching to the Network tab, and watching for outbound traffic while you run a conversion. There is no traffic related to your file. The only network requests are the initial download of the page assets when the tab first loads.

The browser sandbox is a structural privacy guarantee in the FixTools model. Modern browsers enforce the same origin policy and prevent JavaScript from sending file data to arbitrary destinations without explicit user interaction. The FixTools tool does not include any code that would attempt such a send, but even if it did, the browser would not allow it silently. This is qualitatively different from a desktop application, which has full access to your filesystem and network and relies on the publisher's integrity for privacy. The browser is in many ways a safer environment for handling sensitive files than a desktop app from an unfamiliar publisher.

On performance, in-browser PNG to PDF conversion is faster than equivalent server side tools for files under about 20 megapixels. There is no upload phase to wait through, no queue contention with other users, and modern JavaScript engines like V8 (Chrome, Edge) and JavaScriptCore (Safari) handle the FlateDecode and PDF assembly steps in well under a second per image on any laptop made in the last five years. Larger files start to favor server side processing only when you have a slow CPU and a fast internet connection, which is the opposite of the typical user setup.

Same-origin policy (MDN)Browser sandbox model (Chromium)ISO 32000 PDF standard

How to use this tool

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Drop PNG files onto the FixTools page in any modern browser. The tool produces a downloadable PDF immediately, with no upload and no install.

How It Works

Step-by-step guide to png to pdf online:

1
Open FixTools in your browser
Navigate to the FixTools Image to PDF page in Chrome, Edge, Safari, Firefox, or any modern browser including the version of Edge installed on locked-down corporate machines. No admin rights are needed to use the tool because nothing is installed. The page loads in under a second on a typical connection and is ready immediately.
2
Drop your PNG files
Drag PNG files from your screenshots folder, downloads folder, or design export folder directly onto the upload zone. The browser receives the file references through the drag and drop API and reads the bytes into memory using the File API. Thumbnails appear instantly so you can confirm the right files were selected.
3
Convert in browser
Click Convert to PDF. The JavaScript inside the page runs the conversion on your local CPU, completing in a fraction of a second for a typical screenshot and a few seconds for a large batch. Network activity stays at zero throughout, which you can verify in the browser developer tools Network tab if you want to confirm the privacy property directly.
4
Download the PDF
The browser triggers a save dialog the moment the PDF is assembled. Choose where to save and the file is ready immediately. The PDF is a fully standalone document with no dependencies on the FixTools page, so you can close the tab afterward and the PDF remains usable on your device or anywhere you send it.

Real-world examples

Common situations where this approach makes a real difference:

Corporate user on a locked-down laptop

An employee at a financial services firm cannot install desktop software on their corporate laptop and is blocked from most cloud upload services by the firm's data loss prevention proxy. They need to convert ten PNG screenshots of internal dashboards to a PDF for a meeting handout. FixTools loads in the corporate browser because it is just a regular web page with no upload requirements, the conversion runs locally so the DLP proxy sees zero upload traffic, and the PDF lands in the downloads folder within a minute. No IT ticket, no exception process, no policy violation.

Traveler on a hotel business center PC

A traveler at a hotel needs to convert PNG screenshots of their itinerary into a PDF to email to a colleague back home. The hotel business center PC does not allow software installation and runs an outdated copy of Office without PDF export. They open FixTools in the browser, drop the PNGs in, generate the PDF, email it, and walk away. Nothing is left behind on the shared PC because the conversion happened entirely in browser memory and the only artefact on disk was the PDF they explicitly downloaded.

Student on a university lab computer

A computer science student captures PNG screenshots of compiler output and stack traces for a debugging report assignment, working on a university lab computer that locks down to a clean state at logout. They need a PDF before the lab session ends. FixTools converts the PNGs in browser in under five seconds, the PDF goes to the student's cloud storage via the lab computer browser, and when the lab logs them out the temporary state is wiped without any residue of their work having been on a third party server.

Designer on the road with a Chromebook

A designer travelling with only a lightweight Chromebook needs to send a client a single PDF combining ten PNG mockup screens. A Chromebook is a browser first device with no native desktop apps for PDF assembly. FixTools is a perfect fit: it loads in the Chromebook browser, runs entirely in the local Chrome engine, produces the PDF directly in the downloads folder, and lets the designer send the file from the same machine without ever needing a desktop application of any kind.

Pro tips

Get better results with these expert suggestions:

Bookmark FixTools for repeat use

If you convert PNG to PDF more than occasionally, bookmark the FixTools Image to PDF page for one-click access. The page loads from cache after the first visit, so subsequent uses are even faster. Many corporate browsers permit bookmarks even when they restrict installs, making FixTools a portable converter you can carry across every locked-down machine you use.

Verify zero upload with the developer tools

For sensitive content, open the browser developer tools (F12 on Windows, Cmd Option I on Mac), switch to the Network tab, clear the activity log, and run a PNG to PDF conversion. You should see no outbound requests during conversion. If you ever see one, that is your signal to stop using the tool. FixTools shows none, which you can verify yourself in under thirty seconds.

Use guest mode or private browsing for one-off conversions

On shared computers, open FixTools in a private or guest browsing window so the browser does not store any cached references to the PNG files in its history or local storage. The conversion runs the same way. When you close the window, the browser discards all traces of the session.

Use Chromebook or iPad for travel conversions

FixTools runs in mobile Safari, mobile Chrome, and ChromeOS browsers. If your travel device is an iPad or Chromebook, the in-browser conversion is the only realistic way to assemble a PDF from PNG screenshots, since neither device has full desktop image to PDF apps. The mobile UI of FixTools is the same as the desktop UI and works fluidly with touch.

FAQ

Frequently asked questions

No. FixTools has no account system at all. There is no sign up form, no email gate, no payment card request, and no "create an account to unlock the full feature" prompt anywhere in the workflow. Every visitor gets the full feature set on every visit. This is by design: account walls are usually about lead capture rather than about delivering value, and a converter that runs entirely in the browser does not need to know who you are to do its job.

No, never. The PNG bytes stay in browser memory on your device. They are not uploaded, not logged, not analysed, and not shared with anyone including FixTools itself. The browser sandbox structurally prevents the page from sending file data to any destination without your explicit interaction, and FixTools does not include code that would attempt to do so. The privacy property is enforceable by your own browser, not just promised by the operator.

Yes. The tool runs in mobile Safari, mobile Chrome, mobile Firefox, and the in-app browsers used by social media apps. On iPhone you can convert HEIC and JPG photos from your camera roll to PDF directly through Safari without needing a desktop computer. On Android the same flow works through Chrome. The mobile UI is the same single page tool, just laid out for touch. Conversion speed is roughly the same as on a laptop because modern phone CPUs are fast enough to assemble PDFs in a fraction of a second.

Faster for most users. Server side tools have to receive the upload before they can start, which adds tens of seconds for a typical residential connection uploading multi-megabyte images. FixTools skips the upload entirely and starts processing the moment you drop the file. For a single screenshot this means a full PDF in under one second from drop to download dialog. Server side tools also queue you behind other users at peak times, while FixTools always runs at your local CPU speed regardless of how busy the website is.

Every modern browser including Chrome (version 90 and above), Edge (Chromium based, all current versions), Firefox (version 90 and above), Safari (version 14 and above), Brave, Vivaldi, and the in app browsers in Slack, Teams, and Discord. Internet Explorer is not supported because it does not implement the modern File API. The tool tests the browser at load time and shows a clear message if the browser is too old to run the conversion locally.

Yes, after the first load. Once the FixTools page is in your browser cache, you can disconnect from the internet and still convert PNG to PDF because the JavaScript that runs the conversion is already on your device. This is one of the side benefits of the client-side architecture: the tool keeps working even on a flaky hotel Wi-Fi or on a plane after the page is loaded.

No enforced limit, only the practical limit of your device's memory. A typical laptop with 8 GB of RAM handles PNGs up to about 50 megapixels comfortably and batches of fifty to a hundred normal-sized screenshots without trouble. Very large engineering or scientific PNGs above 50 megapixels may slow the browser or run out of memory, in which case resize the source first or split into smaller pieces.