A PDF that won't open, shows an error, or displays a blank screen is usually corrupted or damaged. Here are the steps to fix it — starting with the fastest free options.
Open the PDF in a different application. If Chrome shows an error, try Adobe Reader or Preview on Mac. Different viewers have different tolerance for structural issues — sometimes switching viewers fixes the problem instantly.
If the PDF was downloaded, re-download it. Interrupted downloads are a common cause of corruption. Ask the sender to re-send if needed.
Go to pdfeditor.onl/repair-pdf. Upload the damaged PDF. The tool rebuilds the internal structure and attempts to recover all readable content.
Tip: Even partially corrupted PDFs are worth uploading — the repair tool often recovers most or all content even when the file fails to open in standard viewers.
Check if a backup exists in your cloud storage (Google Drive, Dropbox, iCloud, OneDrive). Most cloud services keep version history.
Common causes: interrupted download, storage media failure, file transfer error, software crash during save, or virus/malware damage.
Blank PDFs are often caused by rendering issues in the viewer rather than corruption. Try opening in a different application first.
Yes — completely free at pdfeditor.onl/repair-pdf.