PDF Converter: PDF-Dokumente im Handumdrehen bearbeiten und signieren

Konvertieren, teilen, zusammenführen, bearbeiten und signieren Sie Ihre PDF-Dokumente online ohne Registrierung.

Gesichert und geladen

Schnell und einfach

Ohne Emails



Dateierweiterung .pdf
Internet-Medientyp application/pdf
Beschreibung Das Portable Document Format (PDF) ist ein skalierbares, vektorbasiertes Dateiformat, das im Jahre 1993 von Adobe Systems entwickelt wurde. PDF wurde entwickelt, um plattformunabhängige Dokumente zu erstellen, die auf mehreren Geräten und Bildschirmgrößen angezeigt werden können. Die Darstellung einer PDF-Datei ist immer unabhängig von Operationssystem, Software und Hardware.
Technische Daten Die PDF-Datei verfügt über ein festes Layout, das es Benutzern ermöglicht, Probleme mit fehlenden Schriften, falsch platzierten Elementen, verzerrten Grafiken usw. zu vermeiden. PDF-Dokumente sind immer miteinander kompatibel, unabhängig von der Software, mit der Sie PDF erstellen und bearbeiten. Außerdem ist es möglich, das Drucken eines PDF-Dokuments zu verhindern und es mit einem Passwort zu schützen.
Entwickelt von ISO
Erstveröffentlichung 15. Juni 1993
Nützliche Links https://fileinfo.com/extension/pdf



Show more

Wie zu führen:

Hoe de online PDF-converter te gebruiken:

  1. Typ AltoPDF.com in de adresbalk van uw webbrowser.
  2. Selecteer in de app de bewerking die u met uw PDF wilt uitvoeren en kies de respectieve kolom (bijv. PDF beheren, Converteren of Office & PDF).
  3. Selecteer het gewenste gereedschap in het menu door erop te klikken.
  4. Wanneer u wordt omgeleid naar een nieuwe pagina, uploadt u een bestand vanaf uw apparaat of importeert u het uit Google Drive, Dropbox of OneDrive.
  5. Volg de aanwijzingen om uw bestand online te verwerken.
  6. Kies wat u nog meer wilt doen met het resulterende bestand. Download het terug naar uw apparaat of sla het op naar uw cloudopslagserviceaccount.
  7. Bewerk uw documenten online met behulp van de webgebaseerde PDF-editor.
  8. Deel het resulterende bestand via e-mail, fax of sms.

Die Vergleichstabelle der höchsten Funktionen

Aufgrund des starken Wettbewerbs im Web kann es schwierig sein, die beste Anwendung auszuwählen, insbesondere wenn Sie sie nicht richtig mit den alternativen Optionen vergleichen. Unsere Checkliste hilft Ihnen dabei, schnell Ihr Lieblingswerkzeug für work with PDF zu finden. Schauen Sie sich die starken Eigenschaften von AltoPDF an.

Split PDF
Merge PDF
Combine & Reorder
Extract Pages
Compress PDF
Rotate PDF
No software downloads
Cloud storage Unlimited No info No info
Price Free Free 7-Day Trial paid Free 7-Day Trial paid
Encryption and security
Support 24/7/365 No info
No ads

Customer Reviews — Trusted by great people



Awesome converter! I can experiment with my documents using various options, combining them to get the file I need. No more trouble with unsuitable formats. I get the right one in a matter of seconds.



The best PDF converter I’ve ever come across! All-in-one solution! Extract, merge, split, convert to images and back… even e-signature is available. Everything’s on the table and for free.



I used to convert my PDF documents with other tools, but now that I found AltoPDF everything has become simpler. I can’t think of any drawbacks.

Your opinion matters!

If your experience was picture-perfect, please take a moment to tell us so.

How to Work with a PDF Online

Different paid software for converting PDFs is available online, but it’s vital you make the right choice. We’ve collected the best free features for you in one place.

Upgrade Your Skills to View & Edit PDFs

Many contracts and documents are signed electronically and saved in PDF because the format tends to be more secure. However, this means that viewing and editing PDFs can become complicated. See the advanced features of our powerful web-based tool that can satisfy all your requirements:

  1. Split PDFs into separate documents or pages.
  2. Merge several documents into a single one.
  3. Rotate pages and select a horizontal or vertical position.
  4. Work across your storage clouds.
  5. View and edit documents on the go.
  6. Combine and reorder files. 
  7. Compress PDF papers for quick sharing and better storing.
  8. Manage your paperwork instantly and for free.
  9. Delete or extract the pages you need.
  10. Rest assured your information is protected.

All-in-one AltoPDF.com online service has the most common tools for working with a portable document format. All of them are free, with no registration required. Drag-and-drop functions make the process even more comfortable. This powerful browser application allows you to view, organize and process PDF documents and pages.

Upgrade Your Skills to View & Edit PDFs

Best Alternative to Convert from PDF

Make PDFs editable in a few clicks and for free. Simply drag and drop PDF files and transfer to a variety of popular file formats like spreadsheets, Word documents, presentations and more. 

Explore the benefit features for your convenience:

  1. Convert PDF to an editable Microsoft Word document.
  2. Save a portable document format to Excel spreadsheets to use formulas and make reports.
  3. Transfer to PPT without losing formatting.
  4. Promptly change PDFs to images: JPG or PNG.
  5. Easily process documents and transform to HTML.
  6. Download results to your Google Drive, DropBox or OneDrive.
  7. Operate from your desktop or mobile device.
  8. Take advantage of secure data processing.

Converting PDF files is easy if you have the right tools for it. Alto PDF is a multi-purpose solution to help you anywhere and anytime. All you need is your preferable browser and an internet connection.

Best Alternative to Convert from PDF

Use a Safe Solution to Convert to a PDF Online

PDF is known as a universal format to use and share on the internet. For your convenience, you can effortlessly convert any document you have to PDF. 

Do this absolutely free of charge with AltoPDF and make use of advanced features:

  1. Save contracts from Word to PDF for safe storing.
  2. Convert Excel pages and tables for better performance.
  3. Transfer the PowerPoint presentation to PDF keeping the formatting.
  4. Change multiple JPG and PNG images to a single document to email fast.
  5. Easily save the Chrome HTML doc into the PDF file.
  6. Stay assured in a high level of data protection.
  7. Don’t stop editing — use our converter on your mobile device.
  8. Create a file in a portable document format from web pages.
  9. Perform conversions regardless of an operating system.

Our free converter covers the needs of many people. No need to download or install anything. Work in your browser, upload and convert files quickly, instantly save, share or keep editing the newly created PDF.

Use a Safe Solution to Convert to a PDF Online

Easily Manage PDFs across your Apple Devices

Fill out forms, work with manuals and templates and perform other important tasks without installing any special paid software on your Mac or other Apple devices like iPhone or iPad. 

AltoPDF converter works from your browser and undertakes conversion the exact way you need:

  1. Make use of instant PDF conversions that save time.
  2. Transfer Pages to Doc even on the go.
  3. Change Doc to Pages to redact it in the most convenient way.
  4. Operate it for free and with no registration.
  5. Save Numbers to XLS and share with Microsoft Office users.
  6. Convert XLS to Numbers to form reports and tables on Mac.
  7. Keep your connection secure with AltoPDF.
  8. Explore additional innovative features. 

Our online platform is compatible equally well on iOS, Windows or Linux. Use it in your standard browser at the office, at home, or from any other place. Only an internet connection is required.

Easily Manage PDFs across your Apple Devices

The Best way to Sign & Protect Your PDF

Nowadays, it is very important to keep up with everything, from saving time through managing paperwork, to speeding up the process of legally signing documents securely. You can easily use your esignature to certify important PDF documents on the web while staying under staying protected:

  1. Create your unique customized electronic signature.
  2. E-sign legal documents from any device.
  3. Put your legally valid signatures on contracts, tax forms, etc.
  4. Keep your sensitive data safe.
  5. Download a secured PDF to your cloud storage.
  6. Password protect your information.
  7. Remove the password from a secured doc, unlock PDFs online.
  8. Share documents with your teammates or email directly to the recipient.

Always use reliable programs to process PDF documents. Create your personal legally binding signature, sign documents electronically, keep them protected and share them with ease by using our advanced PDF editor online.

The Best way to Sign & Protect Your PDF

How to Find and Complete the Exact Form — Quick Search

The use of business, medical and tax forms saves time and money on phone calls and trips to the office to simply pick up the paperwork. An additional advantage is that many PDF templates are fillable and digital. 

This means that you can work with your documents online:

  1. Use our federated search to get the best results.
  2. Find the appropriate document the fastest way. 
  3. The PDF editor will recognize the editable fields automatically.
  4. Type on the PDF forms and save changes.
  5. Edit templates and add fillable fields.
  6. Insert and adjust images, shapes, checkmarks.
  7. Fill in the professionally designed templates.
  8. Date and sign contracts and business forms.
  9. Complete tax returns and file them with the IRS
  10. Use multi-purpose tools online from any device.

Our browser-based AltoPDF service provides an advanced search for different kinds of documents, templates, samples. Fill out forms, work with guidelines and perform other essential duties without the need to install and pay for software.

How to Find and Complete the Exact Form — Quick Search


AltoPDF ist eine kostenlose Online-Plattform, die Manipulationen mit PDF-Dateien ermöglicht. Eine der wichtigsten Funktionen ist, dass Sie Dateien aus GoogleDrive importieren und nach der Verarbeitung wieder exportieren können. Mit diesem Dienst können Word-, PPT-, JPG- und PNG-Dateien schnell, kostenlos, sicher und einfach konvertiert werden, wobei die Qualität der Originalunterlage erhalten bleibt.