Help Center

Getting started with PDF tools

All PDF tools on ConvertFree.net follow the same pattern: upload, choose options, convert, then download. You don’t need an account, and there are no software installations or browser extensions to manage.

• Go to the tool you need, like PDF to JPG or Compress PDF.
• Drag & drop your file into the upload area or click to select it.
• Pick your settings (quality, pages, rotation, watermark, etc.).
• Click the main button (Convert, Compress, Merge…) and wait for the result.
• Download your converted file or ZIP using the download button.

Using image converters & optimizers

Image tools work similarly to PDF tools and support multiple files where it makes sense. You can convert formats, compress images, resize, rotate, watermark or apply black & white styles.

• For performance, use Image compressor and Image to WebP.
• For layout, use Image resizer and Image rotator.
• For branding, use Image watermark and Watermark PDF.
• For style, try Image to black & white.

File size limits & performance

ConvertFree.net is optimized for common everyday PDFs and images. For most tools, the maximum upload size is around 80 MB per job, depending on the tool and your connection.

• Large, image-heavy PDFs can take longer to convert or compress.
• If a job fails, try splitting the PDF using Split PDF first.
• For many images, batch them into a few smaller uploads instead of one huge job.
• Wait for the download to complete before closing the browser tab.

File safety & automatic deletion

Files are processed directly on our hosting using PHP and Imagick, without sending content to external conversion APIs. Temporary files are saved into tool-specific storage folders.

• Uploads are used only to perform your requested conversion or optimization.
• Automated cleanup removes old files from /storage folders on a regular basis.
• Do not use the tools for highly confidential or regulated data.

Troubleshooting common issues

If something doesn’t work as expected, try the following steps:

• Refresh the page and upload the file again.
• Check your internet connection and browser extensions (especially ad-blockers).
• Make sure the file is actually a PDF or image and not renamed from another format.
• Reduce file size or split the document, then try again.

If you still need help, describe the issue using the Feedback form, including the tool name and approximate file size.

Best practices for better results

• Use clear, non-corrupted source files whenever possible.
• Combine tools into a workflow: e.g. Merge → Compress → Watermark.
• For images, compress and resize before adding them back into PDFs.
• Keep a backup of your original files before making heavy edits.