PDF online di Gletter

Make PDF forms, annotations, signatures, markups, and layers final before sending, printing, filing, or uploading. The default mode preserves quality and does not rasterize pages.

Nessuna registrazione Nessuna filigrana Quality preserved Fino a 1GB
PDF

Forms and markups finalized

Download a ready-to-send PDF

Il Flachmodus

Flattening rewrites the PDF and can invalidate cryptographic digital signatures. Use this when the visible signature or markup appearance needs to be final.

Come scrivere un PDF online

  1. 1

    Upload the PDF that needs final form fields, annotations, markups, signatures, or layers.

  2. 2

    Check the file to see which flattenable PDF elements were detected.

  3. 3

    Flatten the PDF with the standard quality-preserving mode.

  4. 4

    Download the flattened PDF and review it before sending, printing, filing, or uploading.

Strumenti PDF e documenti correlati

Prepare, clean, combine, or convert PDFs before and after flattening.

Firma PDF

Add text, dates, checkmarks, and visible signatures before flattening.

Sblocca PDF

Remove a known open password before flattening a PDF.

Rimuovi Metadati PDF

Strip common document metadata before sharing a final PDF.

Aggiungi filigrana al PDF

Stamp text or an image onto PDF pages before flattening.

Ritaglia PDF Online

Use the free PDF cropper to trim PDF margins, scanner borders, or unwanted page edges before flattening.

Compressore PDF

Shrink PDFs with explicit quality presets after review.

Divisore PDF

Extract pages from a finalized PDF.

Unione PDF

Combine PDFs before finalizing fields and markups.

Convertitore di documenti

Converti PDF, DOCX, EPUB e altri formati di documenti.

Domande frequenti

What does flattening a PDF do?

Flattening makes visible form fields, annotations, markups, signature appearances, and layer output part of the PDF page content so the file is more final for upload, printing, or filing workflows.

Does PDF flattening reduce quality?

No. The default mode uses Ghostscript PDF output with image downsampling disabled. It does not use full-page rasterization, lower resolution, or compression as a load-saving shortcut.

Will flattening affect digital signatures?

Yes. Flattening rewrites the PDF structure and can invalidate cryptographic signatures. Use it when you need the visible signature or markup appearance finalized, not when you need signature validation preserved.

Can I flatten an encrypted PDF?

Unlock the PDF first if you know the open password and are authorized to modify it. Encrypted PDFs are not flattened directly.

I PDF caricati sono privati?

Files are processed in short-lived temporary storage and automatically deleted after processing. Filenames, form values, annotations, signatures, and document text are not sent to analytics.