Support Answers and practical troubleshooting for the most common PDF Core Tools questions. Choose a tool, select files, review the workspace controls, and download the result only after checking it. Tool pages explain supported formats and actual limits. Yes. The currently published tools are available without a paid plan or account. This may change in the future, but any paid feature will be identified before use. No account is currently required for the public browser tools. The current installed tool set is designed primarily for local browser processing. Selected document contents are read in browser memory. Tool pages disclose any exception or external processing requirement. The active in-memory workspace is normally cleared when the page is closed or reloaded. Files you downloaded remain wherever you saved them. The current browser-processing tools do not create a document-conversion copy on the PDF Core Tools server. Normal web-server logs and contact messages are separate from document contents. Browser tools use your device memory and processor. Large PDFs, high-resolution images, many pages, and older mobile devices can require more time or memory. There is no fixed page or file-count limit in the browser-based workflows. Large or numerous files can take longer and use more memory depending on the device and browser. Yes, although complex or large documents generally work better on a desktop browser with more available memory. Not in every case. Fonts, transparency, forms, annotations, layers, tables, scanned pages, and unusual encodings can affect conversion or editing results. The tools do not bypass passwords, encryption, DRM, or access restrictions. Use an authorized unlocked copy. Only when you own the material, have permission or a licence, or have another lawful basis to use it. Processing a file does not transfer copyright or remove licence obligations. A current version of Chrome, Edge, Firefox, or Safari is recommended. Private browsing, strict security extensions, or disabled JavaScript may limit some functions. Browser libraries such as PDF and ZIP components may be delivered from trusted content-delivery networks. Those requests load software resources; they do not upload the selected document contents. Use the Contact page and include the tool name, browser, device, what you expected, and what happened. Do not attach confidential documents unless specifically requested through a secure method. Email pdfcoretools@gmail.com or choose the relevant category on the Contact page. The site plans to use Google AdSense. Advertising and consent technologies may use cookies or similar identifiers as explained in the Privacy Policy and Cookie Policy. Contact pdfcoretools@gmail.com and include the tool name, browser, device, approximate file size or page count, and the exact error. Do not send confidential document contents.Help Center & FAQ
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Frequently asked questions
Is PDF Core Tools free to use?
Do I need to create an account?
Are my files uploaded to a server?
What happens when I close the tab?
Does PDF Core Tools keep copies of my documents?
Why can a very large file be slow?
Are there file or page limits?
Can I use the tools on a phone or tablet?
Will the output look exactly like the original?
Can I process password-protected or DRM-protected files?
Can I process copyrighted documents?
Which browsers work best?
Why do some tools load code from a CDN?
How can I report a technical problem?
How can I make a privacy or copyright request?
Will PDF Core Tools display advertising?
Troubleshooting checklist
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