Strumento Gratuito
Oscura permanentemente testo e immagini sensibili in un PDF — le oscurazioni vengono incorporate nel file, senza account necessario.
Come funziona
Oscura il tuo PDF in tre passaggi
- 1
Upload your PDF
Drag and drop your PDF onto the tool or click to browse. The file loads in your browser — never sent to any server.
- 2
Draw redaction boxes
Click and drag on any page to draw a black redaction box over the content you want to hide. You can add as many boxes as needed across all pages. Click a box to remove it.
- 3
Apply redactions and download
Click 'Apply redactions & download'. The black boxes are drawn directly into the PDF page content using pdf-lib and flattened permanently — they cannot be removed with a standard viewer.
Perché usare Signvoy
Permanente, preciso, privato
Draw to redact — any content
Draw redaction boxes over any text, image, or area you want to hide. Works on text-based and scanned PDFs alike.
Permanently flattened
Redactions are drawn as solid black rectangles directly into the PDF page content using pdf-lib — they become part of the document and cannot be undone with a standard viewer.
Your content stays on your device
All processing is local. Your PDF and its sensitive content are never sent to any server — close the tab and everything is discarded.
Hai bisogno di inviare un documento ad altri per la firma?
Questo strumento gratuito copre il lavoro su documenti self-service in un solo passaggio. La piattaforma completa di Signvoy aggiunge tutto ciò di cui un'azienda ha bisogno: inviare a più firmatari, imporre un ordine di firma, ottenere una traccia di audit a prova di manomissione, automatizzare i promemoria e allegare un certificato di completamento a ogni documento finito.
- Firma multi-parte
- Traccia di audit a prova di manomissione
- Certificato di completamento
- Modelli di firma riutilizzabili
- Instradamento sequenziale e parallelo
- Promemoria automatici
- API REST e webhook
- Logica di campi condizionali
FAQ
Domande frequenti
- Are the redactions truly permanent?
- The black rectangles are drawn into the PDF page content using pdf-lib, which means they are embedded as standard PDF drawing operations. They cannot be removed in any standard PDF viewer. However, unlike professional redaction tools, the underlying text data may still exist in the PDF's text stream. For maximum security on highly sensitive documents, use a professional redaction tool that also strips the underlying text.
- Can I redact text on scanned PDFs?
- Yes — scanned PDFs contain images, and the black boxes are drawn over the page image. Since there is no embedded text, the redaction is as permanent as possible.
- Can I undo a redaction before downloading?
- Yes — before you click 'Apply redactions & download', click any black box on the page to remove it.
- Can I redact multiple pages?
- Yes — scroll through all pages and draw boxes on any page. All redactions across all pages are applied at once when you download.
Vuoi saperne di più? Leggi la guida completa: Come oscurare un PDF definitivamente — gratis →
Smetti di rincorrere le firme
Unisciti a migliaia di team che usano Signvoy per chiudere accordi, acquisire clienti e firmare contratti — più velocemente.
Nessuna carta di credito · Piano gratuito per sempre · 14 giorni di prova Pro