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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| /* | ||
| * PDF/A-3 optimization (compression) example. | ||
| * | ||
| * Run as: go run pdfa3_apply_standard.go <input.pdf> <output.pdf> | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "log" | ||
| "os" | ||
| "time" | ||
|
|
||
| "github.com/unidoc/unipdf/v3/common/license" | ||
| "github.com/unidoc/unipdf/v3/model" | ||
| "github.com/unidoc/unipdf/v3/model/pdfa" | ||
| ) | ||
|
|
||
| func init() { | ||
| // Make sure to load your metered License API key prior to using the library. | ||
| // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io | ||
| err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
|
||
| func main() { | ||
| args := os.Args | ||
| if len(args) < 3 { | ||
| fmt.Printf("Usage: %s INPUT_PDF_PATH OUTPUT_PDF_PATH", os.Args[0]) | ||
| return | ||
| } | ||
| inputPath := args[1] | ||
| outputPath := args[2] | ||
|
|
||
| // Initialize starting time. | ||
| start := time.Now() | ||
|
|
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| // Create reader. | ||
| reader, file, err := model.NewPdfReaderFromFile(inputPath, nil) | ||
| if err != nil { | ||
| log.Fatalf("Fail: %v\n", err) | ||
| } | ||
| defer file.Close() | ||
|
|
||
| // Generate a PDFWriter from PDFReader. | ||
| pdfWriter, err := reader.ToWriter(nil) | ||
| if err != nil { | ||
| log.Fatalf("Fail: %v\n", err) | ||
| } | ||
|
|
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| // Apply standard PDF/A-3B. | ||
| pdfWriter.ApplyStandard(pdfa.NewProfile3B(nil)) | ||
|
|
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| // Create output file. | ||
| err = pdfWriter.WriteToFile(outputPath) | ||
| if err != nil { | ||
| log.Fatalf("Fail: %v\n", err) | ||
| } | ||
|
|
||
| duration := float64(time.Since(start)) / float64(time.Millisecond) | ||
| fmt.Printf("Processing time: %.2f ms\n", duration) | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| /* | ||
| * PDF/A-3 optimization (compression) example. | ||
| * | ||
| * Run as: go run pdfa3_validate_standard.go <input.pdf> | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "log" | ||
| "os" | ||
| "time" | ||
|
|
||
| "github.com/unidoc/unipdf/v3/common/license" | ||
| "github.com/unidoc/unipdf/v3/model" | ||
| "github.com/unidoc/unipdf/v3/model/pdfa" | ||
| ) | ||
|
|
||
| func init() { | ||
| // Make sure to load your metered License API key prior to using the library. | ||
| // If you need a key, you can sign up and create a free one at https://cloud.unidoc.io | ||
| err := license.SetMeteredKey(os.Getenv(`UNIDOC_LICENSE_API_KEY`)) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
|
||
| func main() { | ||
| args := os.Args | ||
| if len(args) < 2 { | ||
| fmt.Printf("Usage: %s INPUT_PDF_PATH", os.Args[0]) | ||
| return | ||
| } | ||
| inputPath := args[1] | ||
|
|
||
| // Initialize starting time. | ||
| start := time.Now() | ||
|
|
||
| // Create reader. | ||
| inputFile, err := os.Open(inputPath) | ||
| if err != nil { | ||
| log.Fatalf("Fail: %v\n", err) | ||
| } | ||
| defer inputFile.Close() | ||
|
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| detailedReader, err := model.NewCompliancePdfReader(inputFile) | ||
| if err != nil { | ||
| log.Fatalf("Fail: %v\n", err) | ||
| } | ||
|
|
||
| // Apply standard PDF/A-3. | ||
| standards := []model.StandardImplementer{ | ||
| pdfa.NewProfile3A(nil), | ||
| pdfa.NewProfile3B(nil), | ||
| pdfa.NewProfile3U(nil), | ||
| } | ||
|
|
||
| // Iterate over input standards and check if the document passes its requirements. | ||
| for _, standard := range standards { | ||
| if err = standard.ValidateStandard(detailedReader); err != nil { | ||
| fmt.Printf("Input document didn't pass the standard: %s - %v\n", standard.StandardName(), err) | ||
| } | ||
| } | ||
|
|
||
| duration := float64(time.Since(start)) / float64(time.Millisecond) | ||
| fmt.Printf("Processing time: %.2f ms\n", duration) | ||
| } |