Frequently Asked Questions

Yes, absolutely. Every tool on PNGtoPDF.pro is completely free to use with no hidden costs, no premium tiers, and no account required. You can convert PNG to PDF, merge PDFs, split documents, compress files, and more — all without spending a penny. We don't add watermarks to your output files or limit the number of conversions you can perform. Our service is supported by non-intrusive advertising, which allows us to keep the tools free for everyone.

No, you do not need to create an account, sign up, or provide any personal information to use our tools. Simply visit the tool page you need, upload your file, and get your result. It's that simple — no registration barriers, no email verification, and no passwords to remember.

We currently offer six powerful tools to handle your document needs:

• PNG to PDF — Convert one or more PNG images into a single PDF document.
• PDF to PNG — Extract each page of a PDF as a high-quality PNG image.
• Image to PDF — Convert JPG, PNG, WebP, GIF, or BMP images into a PDF.
• Merge PDF — Combine multiple PDF files into one unified document.
• Compress PDF — Reduce the file size of your PDFs while maintaining quality.
• Split PDF — Separate a PDF into individual single-page files.

No. This is a key differentiator of PNGtoPDF.pro. All file processing takes place entirely within your web browser using client-side JavaScript technology. Your files never leave your device — they are not uploaded to our servers or any third-party servers. We literally have no access to your files at any point during the conversion process. This means your sensitive documents remain private and under your control at all times.

Since your files are processed locally in your browser, there is nothing stored on our end to delete. The temporary data used during the conversion exists only in your browser's memory while the tab is open. Once you close or refresh the tab, that data is automatically cleared. Your original files on your device remain completely unchanged.

Yes. PNGtoPDF.pro is served exclusively over HTTPS, which encrypts all communication between your browser and our website. You can verify this by checking for the padlock icon in your browser's address bar. Combined with our client-side processing architecture, this provides an exceptionally secure experience for handling your documents.

Our PNG to PDF tool is optimized specifically for PNG images. For broader format support, our Image to PDF tool accepts PNG, JPG, JPEG, WebP, GIF, and BMP files. You can mix and match different formats in a single conversion — for example, combining PNG and JPG images into one PDF document.

Since all processing happens in your browser, there is no hard file size limit imposed by our website. The practical limit depends on your device's available memory (RAM). Most modern computers and phones can comfortably handle files up to 50–100 MB. If you're working with very large files and experience slowdowns, try closing other browser tabs and applications to free up memory. For extremely large PDFs (over 200 MB), you may need a desktop application instead.

There is no set limit on the number of files you can convert in a single session. Tools like our PNG to PDF converter, Image to PDF converter, and Merge PDF tool allow you to add multiple files at once. The only constraint is your device's memory. For best results, we recommend processing up to 50 images or 20 PDFs at a time, but you can try more if your device has sufficient resources.

Yes. Our PNG to PDF and Image to PDF tools include settings that let you choose from common page sizes including A4, US Letter, and Legal. You can also select between portrait and landscape orientation. These settings are available in the settings panel before you start the conversion.

PNGtoPDF.pro works in all modern web browsers, including Google Chrome, Mozilla Firefox, Microsoft Edge, Apple Safari, Opera, and Brave. We recommend using the latest version of your preferred browser for the best performance and compatibility. Internet Explorer is not supported.

Absolutely. PNGtoPDF.pro is designed with a mobile-first approach, meaning every tool is fully functional and optimized for smartphones and tablets. Whether you're using an iPhone, iPad, Android phone, or any other mobile device, you can convert, merge, split, and compress files directly from your mobile browser without installing any app.

No. PNGtoPDF.pro is a web-based service that runs entirely in your browser. There are no downloads, installations, plugins, or extensions needed. Just open the website, choose your tool, and start working. This makes it easy to use on any device — including shared or work computers where you might not be able to install software.

Since processing happens locally, performance depends on your device. Here are some tips to speed things up: close other browser tabs and resource-heavy applications, try using fewer or smaller files per batch, clear your browser's cache, restart your browser, or try a different browser. If you're on a mobile device, make sure you have enough free memory available.

This is rare, but it can happen if the conversion process was interrupted (for example, if the browser tab lost focus on a mobile device). Try the conversion again and make sure to keep the tab active until the download completes. If the issue persists, try a different browser. For PDF files, make sure you have a PDF reader installed on your device — most modern operating systems include one, but you can use free options like Adobe Acrobat Reader if needed.

When using our PDF to PNG tool, you can adjust the output quality by selecting a higher scale factor (2x or 3x) in the settings panel before conversion. Higher scale factors produce larger, more detailed images at the cost of bigger file sizes and longer processing times. For image-to-PDF conversions, the output quality matches the quality of your source images, so using high-resolution originals will yield the best results.