Crear PDF rellenable online

What Crear PDF rellenable does

Crear PDF rellenable turns an ordinary PDF into a form that people can fill in on a computer or phone. You draw text fields, checkboxes and dropdown lists on top of the existing layout, for example over the lines of a registration form, a questionnaire or an order sheet.

When you click Save PDF, pdf-lib adds real interactive form fields (AcroForm fields) to the document and saves it with -fillable at the end of the name. The original page content is not changed, and the fields work in standard PDF viewers.

Cómo usar Crear PDF rellenable

1. Arrastra el PDF con el que quieres trabajar.
2. Elige una herramienta de la barra y haz clic en la página para usarla.
3. Mueve, cambia de tamaño o elimina lo que hayas añadido antes de guardar.
4. Haz clic en Guardar PDF para descargar el resultado.

When to use Crear PDF rellenable

• Convert a scanned paper registration form into a PDF that club members or patients can complete on screen.
• Add text fields and checkboxes to a client intake questionnaire so clients can fill it in and send it back by email.
• Build a simple order sheet with dropdowns for size or color that customers can complete without printing it.
• Make a worksheet fillable so students can type their answers instead of printing the pages and writing by hand.

Settings explained

Text field

Drag a box where people should type, such as a name, email or address line. Make the box slightly larger than the printed line so typed text fits. Taller boxes become multi-line fields.

Checkbox

Click to add an 18-point square checkbox, or drag to draw one at a custom size. Use checkboxes for yes or no questions, agreements and lists where several answers can be chosen.

Dropdown

Drag a box to create a list from which people choose one option. While it is selected, type the choices in the toolbar box separated by commas, for example Small, Medium, Large.

Text

Adds fixed text that is not a field, such as a label, an instruction or a heading next to a field. It is part of the page and cannot be changed by the person filling in the form.

Font size

Sets the size of fixed text added with Text, from 6 to 96 points, default 14. For text fields it decides when a box allows several lines: boxes taller than 2.5 times this value become multi-line.

¿Qué es PDF?

PDF (Portable Document Format) es un formato de documento creado por Adobe en 1993. Los archivos usan la extensión .pdf.

PDF was created by Adobe to show documents the same way on any device and printer. A PDF file describes pages with text, fonts, vector graphics and images at fixed positions. It became an open ISO standard in 2008, and there are special variants such as PDF/A for archiving and PDF/X for printing.

PDF is the right choice for documents that must look the same everywhere, such as contracts, invoices, forms, manuals, reports and files for printing. It also supports digital signatures, fillable forms, comments and password protection.

PDF is hard to edit, because text is stored as positioned pieces, not as flowing paragraphs. Converting a PDF to Word may change the layout. Scanned PDFs contain pictures of text, not real text, unless OCR has been applied.

All major web browsers open PDF files directly. Windows, macOS, iOS and most Android phones include a PDF viewer, and Adobe Acrobat Reader and many free apps can view, annotate and fill PDF forms on all platforms.

Por qué usar Crear PDF rellenable de FansBond

La mayoría de los convertidores online suben tus archivos a sus servidores. La herramienta Crear PDF rellenable de FansBond hace el trabajo dentro de tu navegador, con WebAssembly y las API modernas del navegador. Tus archivos se quedan en tu dispositivo, lo que es más seguro para fotos privadas, contratos y trabajos sin publicar, y a menudo es más rápido porque no hay que subir ni descargar nada.

Sin colas, sin marcas de agua y sin cuenta. Una vez cargada la página, la herramienta sigue funcionando incluso con una conexión lenta.

Tips for the best result

• Fields are named automatically as text_1, check_2, select_3 and so on, numbered in the order you added them. This matters if you collect answers with software.
• Zoom in with your browser before placing small checkboxes, so they line up exactly with the boxes printed on the form.
• Test the form after saving: open it in a PDF viewer, fill in every field, and check that the text fits and each dropdown shows all its choices.
• People who have filled in the form can use Flatten PDF to turn their answers into fixed page content before they send it back.

How Crear PDF rellenable works in your browser

Each page is rendered with pdf.js so you can see it and place items exactly. What you add is kept as separate objects until you save, so you can move, resize or delete it at any time.

When you save, pdf-lib writes your text, drawings, images and fields into the original PDF. The original page content is not re-rendered, so existing text stays sharp and selectable.

Privacy and security

Most online converters upload your files to a server, process them there and keep a copy for some time. Crear PDF rellenable works differently: the code is downloaded to your browser once, and your files are read and written only on your device.

You can check this yourself: after the page has loaded, turn off your internet connection and the tool still works. This makes it safe for contracts, IDs, medical records, private photos and unreleased work.