Use Cases

Document Generation

Build a PDF from scratch by adding pages to a new Document, placing text on each page, and saving the result. This pattern underlies invoice generation, certificate printing, and statement production pipelines:

import aspose_pdf

doc = aspose_pdf.Document()
page = doc.pages.add()
page.add_text("Monthly Report", x=72, y=720, font_size=18)
doc.save("report.pdf")

PDF-to-Image Conversion

Render a page to a raster image for thumbnails, print-ready output, or visual regression baselines. Document.save_page_as_image() renders one page at a time at a given DPI and writes it straight to a file:

import aspose_pdf

doc = aspose_pdf.Document()
doc.load_from("input.pdf")
doc.save_page_as_image(0, "page1.png", dpi=150)

Text Extraction and Indexing

Extract the full text of a document with TextAbsorber for search indexing, data-mining pipelines, or automated content verification in test suites:

import aspose_pdf

doc = aspose_pdf.Document()
doc.load_from("input.pdf")
absorber = aspose_pdf.TextAbsorber()
absorber.visit(doc)
print(absorber.text)

Secure Document Distribution

Encrypt a document with separate user and owner passwords before distribution. The user password is required to open the file; the owner password governs permissions such as printing and content extraction:

import aspose_pdf

doc = aspose_pdf.Document()
doc.load_from("report.pdf")
doc.encrypt(user_password="user-password", owner_password="owner-password", permissions=0)
doc.save("report-secured.pdf")

Document.decrypt(password) removes encryption from an already-open document, and Document.change_passwords() rotates both passwords without a full decrypt/encrypt round trip.

AcroForm Data Collection

Read submitted values back from a filled PDF form by iterating Document.form.fields and printing each field’s name and current value — useful for processing filled application forms without a separate form-submission server:

import aspose_pdf

doc = aspose_pdf.Document()
doc.load_from("submitted-form.pdf")
for field in doc.form.fields:
    print(field.name, "=", field.value)